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<!DOCTYPE html> <html><head><script type="text/javascript" src="/_static/js/bundle-playback.js?v=HxkREWBo" charset="utf-8"></script> <script type="text/javascript" src="/_static/js/wombat.js?v=txqj7nKC" charset="utf-8"></script> <script>window.RufflePlayer=window.RufflePlayer||{};window.RufflePlayer.config={"autoplay":"on","unmuteOverlay":"hidden"};</script> <script type="text/javascript" src="/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("http://www.mindat.org:80/min-1340.html","20160918182856","https://web.archive.org/","web","/_static/", "1474223336"); </script> <link rel="stylesheet" type="text/css" href="/_static/css/banner-styles.css?v=S1zqJCYt" /> <link rel="stylesheet" type="text/css" href="/_static/css/iconochive.css?v=3PDvdIFv" />  <link rel="SHORTCUT ICON" href="https://web.archive.org/web/20160918182856im_/http://www.mindat.org/favicon.ico"> <link rel="stylesheet" href="/web/20160918182856cs_/http://www.mindat.org/mindat.css?revision=2016061401" type="text/css"> <title>Datolite: Datolite mineral information and data.</title> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <meta name="description" content="<M>Gadolinite-Datolite Group</M>. (See also <M>Anchi-Zeolite</M>) The structure of datolite consists of sheets of four- and eight-membered rings of corner-sharing, alternating (HBO4) and (SiO4) tetrahedra, classifying it as a phyllo-borosilicate. The net formula of the anion is (HBSiO5)n, with (HBSiO5) as the repeating unit (Foit et al., 1973). Instead of (HBSiO5), the formula may also be written as (BSiO4OH) or (BSiO4(OH)), indicating that the proton is bonded to one of the oxygen atoms. The mineral does not contain any isolated hydroxide ions, though. Compare also the closely related <m>Bakerite</m> and <m>Shimazakiite</m>."> <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=4.0"/> <link rel="alternate" hreflang="zh" href="https://web.archive.org/web/20160918182856/http://zh.mindat.org/min-1340.html"/> <link rel="alternate" hreflang="x-default" href="https://web.archive.org/web/20160918182856/http://www.mindat.org/min-1340.html"/> <link href="/web/20160918182856cs_/http://www.mindat.org/js/jqueryui/jquery-ui.css" rel="stylesheet" type="text/css"/> <link href="/web/20160918182856cs_/http://www.mindat.org/js/jqueryui/jquery-ui.theme.css" rel="stylesheet" type="text/css"/> <script src="/web/20160918182856js_/http://www.mindat.org/js/jquery-1.11.0.min.js"></script> <script src="/web/20160918182856js_/http://www.mindat.org/js/jquery-ui.min.js"></script> <script src="/web/20160918182856js_/http://www.mindat.org/js/jjquery.cookie-modified.js"></script> <script src="/web/20160918182856js_/http://www.mindat.org/js/jquery.autocomplete-min.js"></script> <script src="/web/20160918182856js_/http://www.mindat.org/cform/cform_client.js"></script>  <script> if (parent.frames.length > 0) parent.location.href = self.document.location; </script> <script> $(window).ready(function(){ if(!$("#ndtitlearea").is(":visible")) { $("#ndtitlearea").html("<b>You are running an adblocker on mindat - please disable your adblocker on mindat for full compatibility</b>").show(); } }); </script> </head> <body> <div class="testhead"><a style="text-align:center; display: block;" href="/web/20160918182856/http://www.mindat.org/article.php/2441/Denver+2016+-+%22main+show%22+-+day+3"><b>LIVE REPORT!</b> Denver 2016 - "main show" - day 3 - last updated 1 minute ago. 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page.</a></b></div><div id="ndminmenu"><a id="gallerymenu2ctrl" href="javascript:openexpander('gallerymenu','2');">Photos of Datolite (756)</a><div class="clearer"></div></div> <div class="expandmenu2" id="gallerymenu"> <a href="/web/20160918182856/http://www.mindat.org/gm/1340">Datolite Gallery</a><a href="/web/20160918182856/http://www.mindat.org/gallery.php?min=1340">Search Photos of Datolite</a></div> <div class="expandmenu2" id="mineditmenu"> <a href="/web/20160918182856/http://www.mindat.org/mineraledit.php?id=1340">Edit </a><a href="/web/20160918182856/http://www.mindat.org/mineraledit.php?ee=1340">Add Synonym</a><a href="/web/20160918182856/http://www.mindat.org/show.php?id=1340&ld=&clearcache=1">Clear Cache</a><a href="/web/20160918182856/http://www.mindat.org/audio_upload.php?min=1340">Add Pronounciation</a><a href="/web/20160918182856/http://www.mindat.org/mesg-63-152366.html">Edit 'Best-of' Discussion</a></div> <div id="expanderarea2"></div> <div class="minpagephotobox hidephone hidetablet"><div class="newpicbox "><div class="userbigpicture noborder" style="float: left; width: 344px;"><a href="/web/20160918182856/http://www.mindat.org/photo-1940.html"><img width="344" height="302" src="/web/20160918182856im_/http://www.mindat.org/arphotos/344h302-0453422001005440490.jpg"></a><div class="userbigpicturecomment"><b><a href="/web/20160918182856/http://www.mindat.org/min-1340.html">Datolite</a></b><br><br><a href="/web/20160918182856/http://www.mindat.org/loc-2635.html">Dal'negorsk, Kavalerovo Mining District, Primorskiy Kray, Far-Eastern Region, Russia</a></div></div><div class="userbigpicture noborder" style="float: left; width: 334px;"><a href="/web/20160918182856/http://www.mindat.org/photo-146764.html"><img width="334" height="302" src="/web/20160918182856im_/http://www.mindat.org/arphotos/334h302-0855526001200972534.jpg"></a><div class="userbigpicturecomment"><b><a href="/web/20160918182856/http://www.mindat.org/min-1340.html">Datolite</a></b><br><br><a href="/web/20160918182856/http://www.mindat.org/loc-5400.html">Upper New Street Quarry, Paterson, Passaic Co., New Jersey, USA</a></div></div><div class="userbigpicture noborder" style="float: left; width: 314px;"><a href="/web/20160918182856/http://www.mindat.org/photo-9981.html"><img width="314" height="302" src="/web/20160918182856im_/http://www.mindat.org/arphotos/314h302-0647914001051326208.jpg"></a><div class="userbigpicturecomment"><b><a href="/web/20160918182856/http://www.mindat.org/min-1340.html">Datolite</a>, etc.</b><br><br><a href="/web/20160918182856/http://www.mindat.org/loc-4545.html">Prospect Park Quarry, Prospect Park, Passaic Co., New Jersey, USA</a></div></div><div class="clearer"></div></div></div><div class="minpagephotobox hidephone hidepc"><div class="newpicbox "><div class="userbigpicture noborder" style="float: left; width: 233px;"><a href="/web/20160918182856/http://www.mindat.org/photo-1940.html"><img width="233" height="205" src="/web/20160918182856im_/http://www.mindat.org/arphotos/344h302-0453422001005440490.jpg"></a><div class="userbigpicturecomment"><b><a href="/web/20160918182856/http://www.mindat.org/min-1340.html">Datolite</a></b><br><br><a href="/web/20160918182856/http://www.mindat.org/loc-2635.html">Dal'negorsk, Kavalerovo Mining District, Primorskiy Kray, Far-Eastern Region, Russia</a></div></div><div class="userbigpicture noborder" style="float: left; width: 226px;"><a href="/web/20160918182856/http://www.mindat.org/photo-146764.html"><img width="226" height="205" src="/web/20160918182856im_/http://www.mindat.org/arphotos/334h302-0855526001200972534.jpg"></a><div class="userbigpicturecomment"><b><a href="/web/20160918182856/http://www.mindat.org/min-1340.html">Datolite</a></b><br><br><a href="/web/20160918182856/http://www.mindat.org/loc-5400.html">Upper New Street Quarry, Paterson, Passaic Co., New Jersey, USA</a></div></div><div class="userbigpicture noborder" style="float: left; width: 213px;"><a href="/web/20160918182856/http://www.mindat.org/photo-9981.html"><img width="213" height="205" src="/web/20160918182856im_/http://www.mindat.org/arphotos/314h302-0647914001051326208.jpg"></a><div class="userbigpicturecomment"><b><a href="/web/20160918182856/http://www.mindat.org/min-1340.html">Datolite</a>, etc.</b><br><br><a href="/web/20160918182856/http://www.mindat.org/loc-4545.html">Prospect Park Quarry, Prospect Park, Passaic Co., New Jersey, USA</a></div></div><div class="clearer"></div></div></div><div class="minpagephotobox hidetablet hidepc"><div class="newpicbox "><div class="userbigpicture noborder" style="float: left; width: 316px;"><a href="/web/20160918182856/http://www.mindat.org/photo-1940.html"><img width="316" src="/web/20160918182856im_/http://www.mindat.org/arphotos/344h302-0453422001005440490.jpg"></a><div class="userbigpicturecomment"><b><a href="/web/20160918182856/http://www.mindat.org/min-1340.html">Datolite</a></b><br><br><a href="/web/20160918182856/http://www.mindat.org/loc-2635.html">Dal'negorsk, Kavalerovo Mining District, Primorskiy Kray, Far-Eastern Region, Russia</a></div></div><div class="userbigpicture noborder" style="float: left; width: 316px;"><a href="/web/20160918182856/http://www.mindat.org/photo-146764.html"><img width="316" src="/web/20160918182856im_/http://www.mindat.org/arphotos/334h302-0855526001200972534.jpg"></a><div class="userbigpicturecomment"><b><a href="/web/20160918182856/http://www.mindat.org/min-1340.html">Datolite</a></b><br><br><a href="/web/20160918182856/http://www.mindat.org/loc-5400.html">Upper New Street Quarry, Paterson, Passaic Co., New Jersey, USA</a></div></div><div class="clearer"></div></div></div><div><div id="introdata"><div><span>Formula:</span><div class="twocol"><span class="newformula">Ca(HBSiO<sub class="newformsub">5</sub>)</span></div></div><div><span>System:</span><div>Monoclinic</div></div><div><span>Colour:</span><div>White, greyish, pale ...</div></div><div><span>Lustre:</span><div>Vitreous, Resinous</div></div><div><span>Hardness:</span><div>5 - 5½</div></div><div><span>Member of:</span><div><a href="min-32181.html">Gadolinite-Datolite Group</a></div></div><div><span>Name:</span><div class="twocol">Named in 1806 by Jens Esmark from the Greek δατεῖσθαι for "to divide", in reference to the granular texture of massive varieties.</div></div></div></div><div class="clearer"></div><div class="padder4"><a href="/web/20160918182856/http://www.mindat.org/min-32181.html">Gadolinite-Datolite Group</a>. (See also <a href="/web/20160918182856/http://www.mindat.org/min-215.html">Anchi-Zeolite</a>)<br/> <br/> The structure of datolite consists of sheets of four- and eight-membered rings of corner-sharing, alternating (HBO4) and (SiO4) tetrahedra, classifying it as a phyllo-borosilicate. The net formula of the anion is (HBSiO5)n, with (HBSiO5) as the repeating unit (Foit et al., 1973). Instead of (HBSiO5), the formula may also be written as (BSiO4OH) or (BSiO4(OH)), indicating that the proton is bonded to one of the oxygen atoms. The mineral does not contain any isolated hydroxide ions, though.<br/> <br/> Compare also the closely related <a href="/web/20160918182856/http://www.mindat.org/min-490.html">Bakerite</a> and <a href="/web/20160918182856/http://www.mindat.org/min-41969.html">Shimazakiite</a>.<br><br><b>Visit gemdat.org for <a href="https://web.archive.org/web/20160918182856/http://www.gemdat.org/gem-1340.html">gemological information about Datolite</a>.</b><br></div><h2 class="mindatadivh2">Classification of Datolite</h2><div class="mindatarow"><div class="mindatath"><a href="/web/20160918182856/http://www.mindat.org/glossary/IMA_status">IMA status:</a></div><div class="mindatam2">Approved, 'Grandfathered' (first described prior to 1959)</div></div><div class="mindatarow"><div class="mindatath"><a href="strunz8.php">Strunz 8th ed.:</a></div><div class="mindatam2">8/B.29-10<br></div></div><div class="mindatarow"><div class="mindatath"><a href="strunz.php">Nickel-Strunz 10th (pending) ed.:</a></div><div class="mindatam2">9.AJ.20<br><br>9 : SILICATES (Germanates)<br>A : Nesosilicates<br>J : Nesosilicates with BO<sub>3</sub> triangles and/or B[4], Be[4] tetrahedra, cornersharing with SiO<sub>4</sub></div></div><div class="mindatarow"><div class="mindatath"><a href="dana.php">Dana 8th ed.:</a></div><div class="mindatam2">54.2.1a.1<br><br>54 : NESOSILICATES Borosilicates and Some Beryllosilicates<br>2 : Borosilicates and Some Beryllosilicates with B in [4] coordination</div></div><div class="mindatarow"><div class="mindatath"><a href="cim.php">Hey's CIM Ref.:</a></div><div class="mindatam2">17.5.10<br><br>17 : Silicates Containing other Anions<br>5 : Borosilicates</div></div><div class="mindatarow"><div class="mindatath">mindat.org URL:</div><div class="mindatam2"><a href="https://web.archive.org/web/20160918182856/http://www.mindat.org/min-1340.html">http://www.mindat.org/min-1340.html</a><br>Please feel free to link to this page.</div></div><h2 class="mindatadivh2">Type Occurrence of Datolite</h2><div class="mindatarow"><div class="mindatath"><a href="/web/20160918182856/http://www.mindat.org/glossary/type_locality">Type Locality:</a></div><div class="mindatam2"><a href="loc-33976.html">Nødebro Mine (Nøddebro), Arendal Iron Mines, Arendal, Aust-Agder, Norway</a></div></div><h2 class="mindatadivh2">Occurrences of Datolite</h2><div class="mindatarow"><div class="mindatath">Geological Setting:</div><div class="mindatam2">Secondary mineral in mafic igneous rocks. Geodes in tuff, limestone skarns, serpentinites, schists, ore veins.</div></div><h2 class="mindatadivh2">Physical Properties of Datolite</h2><div class="mindatarow"><div class="mindatath"><a href="/web/20160918182856/http://www.mindat.org/glossary/lustre">Lustre:</a></div><div class="mindatam2">Vitreous, Resinous</div></div><div class="mindatarow"><div class="mindatath">Diaphaneity (Transparency):</div><div class="mindatam2">Transparent, Translucent, Opaque</div></div><div class="mindatarow"><div class="mindatath">Colour:</div><div class="mindatam2">White, greyish, pale green, red, yellow, etc.</div></div><div class="mindatarow"><div class="mindatath">Streak:</div><div class="mindatam2">White</div></div><div class="mindatarow"><div class="mindatath">Hardness (Mohs):</div><div class="mindatam2">5 - 5½</div></div><div class="mindatarow"><div class="mindatath">Tenacity:</div><div class="mindatam2">Brittle</div></div><div class="mindatarow"><div class="mindatath">Fracture:</div><div class="mindatam2">Irregular/Uneven, Conchoidal</div></div><div class="mindatarow"><div class="mindatath">Density:</div><div class="mindatam2">2.96 - 3 g/cm<sup>3</sup> (Measured)    3 g/cm<sup>3</sup> (Calculated)</div></div><h2 class="mindatadivh2">Crystallography of Datolite</h2><div class="mindatarow"><div class="mindatath">Crystal System:</div><div class="mindatam2">Monoclinic</div></div><div class="mindatarow"><div class="mindatath">Class (H-M):</div><div class="mindatam2">2/<i>m</i> - Prismatic</div></div><div class="mindatarow"><div class="mindatath">Space Group:</div><div class="mindatam2"><i>P</i>2<sub>1</sub>/<i>b</i><i> </i></div></div><div class="mindatarow"><div class="mindatath">Cell Parameters:</div><div class="mindatam2">a = 9.62Å, b = 7.6Å, c = 4.84Å<br>β = 90.15°</div></div><div class="mindatarow"><div class="mindatath">Ratio:</div><div class="mindatam2">a:b:c = 1.266 : 1 : 0.637</div></div><div class="mindatarow"><div class="mindatath">Unit Cell Volume:</div><div class="mindatam2">V 353.86 Å³ (Calculated from Unit Cell)</div></div><div class="mindatarow"><div class="mindatath">Z:</div><div class="mindatam2">4</div></div><div class="mindatarow"><div class="mindatath">Morphology:</div><div class="mindatam2">Short prismatic, lenticular, botryoidal, granular to compact, cryptocrystalline.</div></div><div class="mindatarow"><div class="mindatath">X-Ray Powder Diffraction:</div><div class="mindatam2"><div id="waitxrd" class="waitmsg">Image Loading</div> <img id="xrd" src="/web/20160918182856im_/http://www.mindat.org/rruffgraph.php?id=611&type=xrd" onload="msghide('waitxrd');"><br> Radiation - Copper Kα<br> <form name="xrdform">Data Set: <select id="xrdfile" name="xrdfile" onchange="redrawxrd();"> <option value="611"> Westfield, Massachusetts, USA 611</option> <option value="988"> Charcas, San Luis Potosi, Mexico 988</option> </select> </form> Data courtesy of RRUFF project at University of Arizona, used with permission. </div></div><h2 class="mindatadivh2">Optical Data of Datolite</h2><div class="mindatarow"><div class="mindatath">Type:</div><div class="mindatam2">Biaxial (-)</div></div><div class="mindatarow"><div class="mindatath">RI values:</div><div class="mindatam2"> <i>n</i><sub>α</sub> = 1.626 <i>n</i><sub>β</sub> = 1.653 - 1.654 <i>n</i><sub>γ</sub> = 1.670</div></div><div class="mindatarow"><div class="mindatath">2V:</div><div class="mindatam2">Measured: 74° , Calculated: 72° to 74°</div></div><div class="mindatarow"><div class="mindatath">Max Birefringence:</div><div class="mindatam2">δ = 0.044<br><div id="birefnote">Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.</div><img src="/web/20160918182856im_/http://www.mindat.org/levy.php?rate=0.044"></div></div><div class="mindatarow"><div class="mindatath">Surface Relief:</div><div class="mindatam2">Moderate</div></div><div class="mindatarow"><div class="mindatath">Dispersion:</div><div class="mindatam2">weak r > v</div></div><h2 class="mindatadivh2">Chemical Properties of Datolite</h2><div class="mindatarow"><div class="mindatath">Formula:</div><div class="mindatam2"><span class="newformula">Ca(HBSiO<sub class="newformsub">5</sub>)</span></div></div><div class="mindatarow"><div class="mindatath">All elements listed in formula:</div><div class="mindatam2"><a href="/web/20160918182856/http://www.mindat.org/element/Boron">B</a>, <a href="/web/20160918182856/http://www.mindat.org/element/Calcium">Ca</a>, <a href="/web/20160918182856/http://www.mindat.org/element/Hydrogen">H</a>, <a href="/web/20160918182856/http://www.mindat.org/element/Oxygen">O</a>, <a href="/web/20160918182856/http://www.mindat.org/element/Silicon">Si</a> - <a href="chemsearch.php?inc=CaSiBOH,">search for minerals with similar chemistry</a></div></div><div class="mindatarow"><div class="mindatath">Common Impurities:</div><div class="mindatam2">Mn,Mg,Al,Fe</div></div><h2 class="mindatadivh2">Relationship of Datolite to other Species</h2><div class="mindatarow"><div class="mindatath">Member of:</div><div class="mindatam2"><a href="min-32181.html">Gadolinite-Datolite Group</a></div></div><div class="mindatarow"><div class="mindatath">Other Members of Group:</div><div class="mindatam2"><table class="grouptable gtshift"><tr><td class="mw12em"><a href="min-490.html">Bakerite</a></td><td><span class="newformula">Ca<sub class="newformsub">4</sub>(H<sub class="newformsub">5</sub>B<sub class="newformsub">5</sub>Si<sub class="newformsub">3</sub>O<sub class="newformsub">20</sub>)</span></td></tr><tr><td class="mw12em"><a href="min-6843.html">Calcybeborosilite-(Y)</a></td><td><span class="newformula">(Y,Ca)<sub class="newformsub">2</sub>(□,Fe<sup class="newformsup">2+</sup>)(B,Be)<sub class="newformsub">2</sub>[SiO<sub class="newformsub">4</sub>]<sub class="newformsub">2</sub>(OH,O)<sup class="newformsup newformabs"></sup><sub class="newformsub">2</sub></span></td></tr><tr><td class="mw12em"><a href="min-1627.html">Gadolinite-(Ce)</a></td><td><span class="newformula">(Ce,La,Nd,Y)<sub class="newformsub">2</sub>Fe<sup class="newformsup">2+</sup>Be<sub class="newformsub">2</sub>Si<sub class="newformsub">2</sub>O<sup class="newformsup newformabs"></sup><sub class="newformsub">10</sub></span></td></tr><tr><td class="mw12em"><a href="min-47913.html">Gadolinite-(Nd)</a></td><td><span class="newformula">Nd<sub class="newformsub">2</sub>Fe<sup class="newformsup">2+</sup>Be<sub class="newformsub">2</sub>O<sub class="newformsub">2</sub>(SiO<sub class="newformsub">4</sub>)<sup class="newformsup newformabs"></sup><sub class="newformsub">2</sub></span></td></tr><tr><td class="mw12em"><a href="min-1628.html">Gadolinite-(Y)</a></td><td><span class="newformula">Y<sub class="newformsub">2</sub>Fe<sup class="newformsup">2+</sup>Be<sub class="newformsub">2</sub>Si<sub class="newformsub">2</sub>O<sup class="newformsup newformabs"></sup><sub class="newformsub">10</sub></span></td></tr><tr><td class="mw12em"><a href="min-1905.html">Hingganite-(Ce)</a></td><td><span class="newformula">(Ce,REE)<sub class="newformsub">2</sub>(□,Fe<sup class="newformsup">2+</sup>)Be<sub class="newformsub">2</sub>[SiO<sub class="newformsub">4</sub>]<sub class="newformsub">2</sub>(OH)<sup class="newformsup newformabs"></sup><sub class="newformsub">2</sub></span></td></tr><tr><td class="mw12em"><a href="min-1906.html">Hingganite-(Y)</a></td><td><span class="newformula">(Y,REE,Ca)<sub class="newformsub">2</sub>(□,Fe<sup class="newformsup">2+</sup>)Be<sub class="newformsub">2</sub>[SiO<sub class="newformsub">4</sub>]<sub class="newformsub">2</sub>(OH)<sup class="newformsup newformabs"></sup><sub class="newformsub">2</sub></span></td></tr><tr><td class="mw12em"><a href="min-1907.html">Hingganite-(Yb)</a></td><td><span class="newformula">(Yb,Y,REE)<sub class="newformsub">2</sub>□Be<sub class="newformsub">2</sub>[SiO<sub class="newformsub">4</sub>]<sub class="newformsub">2</sub>(OH)<sup class="newformsup newformabs"></sup><sub class="newformsub">2</sub></span></td></tr><tr><td class="mw12em"><a href="min-1926.html">Homilite</a></td><td><span class="newformula">Ca<sub class="newformsub">2</sub>(Fe<sup class="newformsup">2+</sup>,Mg)B<sub class="newformsub">2</sub>Si<sub class="newformsub">2</sub>O<sup class="newformsup newformabs"></sup><sub class="newformsub">10</sub></span></td></tr><tr><td class="mw12em"><a href="min-2716.html">Minasgeraisite-(Y)</a></td><td><span class="newformula">CaBe<sub class="newformsub">2</sub>Y<sub class="newformsub">2</sub>Si<sub class="newformsub">2</sub>O<sup class="newformsup newformabs"></sup><sub class="newformsub">10</sub></span></td></tr></table></div></div><div class="mindatarow"><div class="mindatath">Common Associates:</div><div class="mindatam2"><table class="grouptable2"><td><div class="gtm"><a href="min-29239.html">Axinite Group</a></div><div class="gtm"><a href="min-859.html">Calcite</a></div></td><td><div class="gtm"><a href="min-1218.html">Danburite</a></div><div class="gtm"><a href="min-1651.html">Garnet Structural Group</a></div></td><td><div class="gtm"><a href="min-3277.html">Prehnite</a></div><div class="gtm"><a href="min-4395.html">Zeolite Group</a></div></td></tr></table></div></div><div class="mindatarow"><div class="mindatath"><a href="strunz.php">Related Minerals - Nickel-Strunz Grouping):</a></div><div class="mindatam2"><table class="grouptable"><tr><td class="mw6em">9.AJ.05</td><td class="mw12em"><a href="min-1737.html">Grandidierite</a></td><td class="m"><span class="newformula">(Mg,Fe<sup class="newformsup">2+</sup>)(Al,Fe<sup class="newformsup">3+</sup>)<sub class="newformsub">3</sub>(SiO<sub class="newformsub">4</sub>)(BO<sub class="newformsub">3</sub>)O<sup class="newformsup newformabs"></sup><sub class="newformsub">2</sub></span></td></tr><tr><td class="mw6em">9.AJ.05</td><td class="mw12em"><a href="min-10796.html">Ominelite</a></td><td class="m"><span class="newformula">(Fe<sup class="newformsup">2+</sup>,Mg)(Al,Fe<sup class="newformsup">3+</sup>)<sub class="newformsub">3</sub>(SiO<sub class="newformsub">4</sub>)(BO<sub class="newformsub">3</sub>)O<sup class="newformsup newformabs"></sup><sub class="newformsub">2</sub></span></td></tr><tr><td class="mw6em">9.AJ.10</td><td class="mw12em"><a href="min-1329.html">Dumortierite</a></td><td class="m"><span class="newformula">(Al,Fe<sup class="newformsup">3+</sup>)<sub class="newformsub">7</sub>(SiO<sub class="newformsub">4</sub>)<sub class="newformsub">3</sub>(BO<sub class="newformsub">3</sub>)O<sup class="newformsup newformabs"></sup><sub class="newformsub">3</sub></span></td></tr><tr><td class="mw6em">9.AJ.10</td><td class="mw12em"><a href="min-1925.html">Holtite</a></td><td class="m"><span class="newformula">(Ta<sub class="newformsub">0.6</sub>◻<sub class="newformsub">0.4</sub>)Al<sub class="newformsub">6</sub>BSi<sub class="newformsub">3</sub>O<sub class="newformsub">18</sub>(O,OH)<sup class="newformsup newformabs"></sup><sub class="newformsub">2.25</sub></span></td></tr><tr><td class="mw6em">9.AJ.10</td><td class="mw12em"><a href="min-2473.html">Magnesiodumortierite</a></td><td class="m"><span class="newformula">(Mg,Ti,◻(Al,Mg)<sub class="newformsub">2</sub>Al<sub class="newformsub">4</sub>Si<sub class="newformsub">3</sub>O<sub class="newformsub">18-y</sub>(OH)<sub class="newformsub">y</sub>B y = 2-3</span></td></tr><tr><td class="mw6em">9.AJ.15</td><td class="mw12em"><a href="min-1652.html">Garrelsite</a></td><td class="m"><span class="newformula">Ba<sub class="newformsub">3</sub>NaSi<sub class="newformsub">2</sub>B<sub class="newformsub">7</sub>O<sub class="newformsub">16</sub>(OH)<sup class="newformsup newformabs"></sup><sub class="newformsub">4</sub></span></td></tr><tr><td class="mw6em">9.AJ.20</td><td class="mw12em"><a href="min-490.html">Bakerite</a></td><td class="m"><span class="newformula">Ca<sub class="newformsub">4</sub>(H<sub class="newformsub">5</sub>B<sub class="newformsub">5</sub>Si<sub class="newformsub">3</sub>O<sub class="newformsub">20</sub>)</span></td></tr><tr><td class="mw6em">9.AJ.20</td><td class="mw12em"><a href="min-1627.html">Gadolinite-(Ce)</a></td><td class="m"><span class="newformula">(Ce,La,Nd,Y)<sub class="newformsub">2</sub>Fe<sup class="newformsup">2+</sup>Be<sub class="newformsub">2</sub>Si<sub class="newformsub">2</sub>O<sup class="newformsup newformabs"></sup><sub class="newformsub">10</sub></span></td></tr><tr><td class="mw6em">9.AJ.20</td><td class="mw12em"><a href="min-1628.html">Gadolinite-(Y)</a></td><td class="m"><span class="newformula">Y<sub class="newformsub">2</sub>Fe<sup class="newformsup">2+</sup>Be<sub class="newformsub">2</sub>Si<sub class="newformsub">2</sub>O<sup class="newformsup newformabs"></sup><sub class="newformsub">10</sub></span></td></tr><tr><td class="mw6em">9.AJ.20</td><td class="mw12em"><a href="min-1905.html">Hingganite-(Ce)</a></td><td class="m"><span class="newformula">(Ce,REE)<sub class="newformsub">2</sub>(□,Fe<sup class="newformsup">2+</sup>)Be<sub class="newformsub">2</sub>[SiO<sub class="newformsub">4</sub>]<sub class="newformsub">2</sub>(OH)<sup class="newformsup newformabs"></sup><sub class="newformsub">2</sub></span></td></tr><tr><td class="mw6em">9.AJ.20</td><td class="mw12em"><a href="min-1906.html">Hingganite-(Y)</a></td><td class="m"><span class="newformula">(Y,REE,Ca)<sub class="newformsub">2</sub>(□,Fe<sup class="newformsup">2+</sup>)Be<sub class="newformsub">2</sub>[SiO<sub class="newformsub">4</sub>]<sub class="newformsub">2</sub>(OH)<sup class="newformsup newformabs"></sup><sub class="newformsub">2</sub></span></td></tr><tr><td class="mw6em">9.AJ.20</td><td class="mw12em"><a href="min-1907.html">Hingganite-(Yb)</a></td><td class="m"><span class="newformula">(Yb,Y,REE)<sub class="newformsub">2</sub>□Be<sub class="newformsub">2</sub>[SiO<sub class="newformsub">4</sub>]<sub class="newformsub">2</sub>(OH)<sup class="newformsup newformabs"></sup><sub class="newformsub">2</sub></span></td></tr><tr><td class="mw6em">9.AJ.20</td><td class="mw12em"><a href="min-1926.html">Homilite</a></td><td class="m"><span class="newformula">Ca<sub class="newformsub">2</sub>(Fe<sup class="newformsup">2+</sup>,Mg)B<sub class="newformsub">2</sub>Si<sub class="newformsub">2</sub>O<sup class="newformsup newformabs"></sup><sub class="newformsub">10</sub></span></td></tr><tr><td class="mw6em">9.AJ.20</td><td class="mw12em"><a href="min-2629.html">Melanocerite-(Ce)</a></td><td class="m"><span class="newformula">(Ce,Ca)<sub class="newformsub">5</sub>(SiO<sub class="newformsub">4</sub>,BO<sub class="newformsub">4</sub>)<sub class="newformsub">3</sub>(OH,0)</span></td></tr><tr><td class="mw6em">9.AJ.20</td><td class="mw12em"><a href="min-2716.html">Minasgeraisite-(Y)</a></td><td class="m"><span class="newformula">CaBe<sub class="newformsub">2</sub>Y<sub class="newformsub">2</sub>Si<sub class="newformsub">2</sub>O<sup class="newformsup newformabs"></sup><sub class="newformsub">10</sub></span></td></tr><tr><td class="mw6em">9.AJ.20</td><td class="mw12em"><a href="min-6843.html">Calcybeborosilite-(Y)</a></td><td class="m"><span class="newformula">(Y,Ca)<sub class="newformsub">2</sub>(□,Fe<sup class="newformsup">2+</sup>)(B,Be)<sub class="newformsub">2</sub>[SiO<sub class="newformsub">4</sub>]<sub class="newformsub">2</sub>(OH,O)<sup class="newformsup newformabs"></sup><sub class="newformsub">2</sub></span></td></tr><tr><td class="mw6em">9.AJ.25</td><td class="mw12em"><a href="min-3788.html">Stillwellite-(Ce)</a></td><td class="m"><span class="newformula">(Ce,La,Ca)BSiO<sup class="newformsup newformabs"></sup><sub class="newformsub">5</sub></span></td></tr><tr><td class="mw6em">9.AJ.30</td><td class="mw12em"><a href="min-889.html">Cappelenite-(Y)</a></td><td class="m"><span class="newformula">Ba(Y,Ce)<sub class="newformsub">6</sub>Si<sub class="newformsub">3</sub>B<sub class="newformsub">6</sub>O<sub class="newformsub">24</sub>F<sup class="newformsup newformabs"></sup><sub class="newformsub">2</sub></span></td></tr><tr><td class="mw6em">9.AJ.35</td><td class="mw12em"><a href="min-2966.html">Okanoganite-(Y)</a></td><td class="m"><span class="newformula">(Na,Ca)<sub class="newformsub">3</sub>(Y,Ce)<sub class="newformsub">12</sub>Si<sub class="newformsub">6</sub>B<sub class="newformsub">2</sub>O<sub class="newformsub">27</sub>F<sup class="newformsup newformabs"></sup><sub class="newformsub">14</sub></span></td></tr><tr><td class="mw6em">9.AJ.35</td><td class="mw12em"><a href="min-7354.html">Vicanite-(Ce)</a></td><td class="m"><span class="newformula">(Ca,Ce,La,Th)<sub class="newformsub">15</sub>As<sup class="newformsup">5+</sup>(As<sup class="newformsup newformsupabs">3+</sup><sub class="newformsub">0.5</sub>,Na<sub class="newformsub">0.5</sub>)Fe<sup class="newformsup">3+</sup>Si<sub class="newformsub">6</sub>B<sub class="newformsub">4</sub>O<sub class="newformsub">40</sub>F<sup class="newformsup newformabs"></sup><sub class="newformsub">7</sub></span></td></tr><tr><td class="mw6em">9.AJ.35</td><td class="mw12em"><a href="min-29098.html">Hundholmenite-(Y)</a></td><td class="m"><span class="newformula">(Y,REE,Ca,Na)<sub class="newformsub">15</sub>(Al,Fe<sup class="newformsup">3+</sup>)(Ca<sub class="newformsub">x</sub>As<sup class="newformsup newformsupabs">3+</sup><sub class="newformsub">1-x</sub>)(Si,As<sup class="newformsup">5+</sup>)Si<sub class="newformsub">6</sub>B<sub class="newformsub">3</sub>(O,F)<sup class="newformsup newformabs"></sup><sub class="newformsub">48</sub></span></td></tr><tr><td class="mw6em">9.AJ.35</td><td class="mw12em"><a href="min-35971.html">Proshchenkoite-(Y)</a></td><td class="m"><span class="newformula">Ca(Y,REE,Ca,Na,Mn)<sub class="newformsub">15</sub>Fe<sup class="newformsup">2+</sup>(P,Si)Si<sub class="newformsub">6</sub>B<sub class="newformsub">3</sub>O<sub class="newformsub">34</sub>F<sup class="newformsup newformabs"></sup><sub class="newformsub">14</sub></span></td></tr><tr><td class="mw6em">9.AJ.40</td><td class="mw12em"><a href="min-31570.html">Jadarite</a></td><td class="m"><span class="newformula">LiNaSiB<sub class="newformsub">3</sub>O<sub class="newformsub">7</sub>(OH)</span></td></tr></table></div></div><div class="mindatarow"><div class="mindatath"><a href="cim.php">Related Minerals - Hey's Index Grouping:</a></div><div class="mindatam2"><table class="grouptable"><tr><td class="mw6em">17.5.1</td><td class="mw12em"><a href="min-2559.html">Manandonite</a></td><td><span class="newformula">Li<sub class="newformsub">2</sub>Al<sub class="newformsub">4</sub>(Si<sub class="newformsub">2</sub>AlB)O<sub class="newformsub">10</sub>(OH)<sup class="newformsup newformabs"></sup><sub class="newformsub">8</sub></span></td></tr><tr><td class="mw6em">17.5.2</td><td class="mw12em"><a href="min-3382.html">Reedmergnerite</a></td><td><span class="newformula">NaBSi<sub class="newformsub">3</sub>O<sup class="newformsup newformabs"></sup><sub class="newformsub">8</sub></span></td></tr><tr><td class="mw6em">17.5.3</td><td class="mw12em"><a href="min-3600.html">Searlesite</a></td><td><span class="newformula">Na(H<sub class="newformsub">2</sub>BSi<sub class="newformsub">2</sub>O<sub class="newformsub">7</sub>)</span></td></tr><tr><td class="mw6em">17.5.4</td><td class="mw12em"><a href="min-2972.html">Olenite</a></td><td><span class="newformula">Na(Al<sub class="newformsub">3</sub>)Al<sub class="newformsub">6</sub>(Si<sub class="newformsub">6</sub>O<sub class="newformsub">18</sub>)(BO<sub class="newformsub">3</sub>)<sub class="newformsub">3</sub>O<sub class="newformsub">3</sub>(OH)</span></td></tr><tr><td class="mw6em">17.5.5</td><td class="mw12em"><a href="min-1364.html">Elbaite</a></td><td><span class="newformula">Na(Li<sub class="newformsub">1.5</sub>Al<sub class="newformsub">1.5</sub>)Al<sub class="newformsub">6</sub>(Si<sub class="newformsub">6</sub>O<sub class="newformsub">18</sub>)(BO<sub class="newformsub">3</sub>)<sub class="newformsub">3</sub>(OH)<sub class="newformsub">3</sub>(OH)</span></td></tr><tr><td class="mw6em">17.5.6</td><td class="mw12em"><a href="min-2135.html">Kalborsite</a></td><td><span class="newformula">K<sub class="newformsub">6</sub>Al<sub class="newformsub">4</sub>BSi<sub class="newformsub">6</sub>O<sub class="newformsub">20</sub>(OH)<sub class="newformsub">4</sub>Cl</span></td></tr><tr><td class="mw6em">17.5.7</td><td class="mw12em"><a href="min-729.html">Boromuscovite</a></td><td><span class="newformula">KAl<sub class="newformsub">2</sub>(BSi<sub class="newformsub">3</sub>O<sub class="newformsub">10</sub>)(OH)<sup class="newformsup newformabs"></sup><sub class="newformsub">2</sub></span></td></tr><tr><td class="mw6em">17.5.8</td><td class="mw12em"><a href="min-3272.html">Poudretteite</a></td><td><span class="newformula">KNa<sub class="newformsub">2</sub>B<sub class="newformsub">3</sub>Si<sub class="newformsub">12</sub>O<sup class="newformsup newformabs"></sup><sub class="newformsub">30</sub></span></td></tr><tr><td class="mw6em">17.5.9</td><td class="mw12em"><a href="min-2395.html">Liddicoatite</a></td><td><span class="newformula">Ca(Li<sub class="newformsub">2</sub>Al)Al<sub class="newformsub">6</sub>(Si<sub class="newformsub">6</sub>O<sub class="newformsub">18</sub>)(BO<sub class="newformsub">3</sub>)<sub class="newformsub">3</sub>(OH)<sub class="newformsub">3</sub>(OH)</span></td></tr><tr><td class="mw6em">17.5.11</td><td class="mw12em"><a href="min-1218.html">Danburite</a></td><td><span class="newformula">CaB<sub class="newformsub">2</sub>Si<sub class="newformsub">2</sub>O<sup class="newformsup newformabs"></sup><sub class="newformsub">8</sub></span></td></tr><tr><td class="mw6em">17.5.12</td><td class="mw12em"><a href="min-1936.html">Howlite</a></td><td><span class="newformula">Ca<sub class="newformsub">2</sub>B<sub class="newformsub">5</sub>SiO<sub class="newformsub">9</sub>(OH)<sup class="newformsup newformabs"></sup><sub class="newformsub">5</sub></span></td></tr><tr><td class="mw6em">17.5.13</td><td class="mw12em"><a href="min-490.html">Bakerite</a></td><td><span class="newformula">Ca<sub class="newformsub">4</sub>(H<sub class="newformsub">5</sub>B<sub class="newformsub">5</sub>Si<sub class="newformsub">3</sub>O<sub class="newformsub">20</sub>)</span></td></tr><tr><td class="mw6em">17.5.14</td><td class="mw12em"><a href="min-3053.html">Oyelite</a></td><td><span class="newformula">Ca<sub class="newformsub">10</sub>Si<sub class="newformsub">8</sub>B<sub class="newformsub">2</sub>O<sub class="newformsub">29</sub> · 12.5H<sub class="newformsub">2</sub>O</span></td></tr><tr><td class="mw6em">17.5.15</td><td class="mw12em"><a href="min-2254.html">Kornerupine</a></td><td><span class="newformula">Mg<sub class="newformsub">3</sub>Al<sub class="newformsub">6</sub>(Si,Al,B)<sub class="newformsub">5</sub>O<sub class="newformsub">21</sub>(OH)</span></td></tr><tr><td class="mw6em">17.5.16</td><td class="mw12em"><a href="min-1819.html">Harkerite</a></td><td><span class="newformula">Ca<sub class="newformsub">12</sub>Mg<sub class="newformsub">4</sub>Al(BO<sub class="newformsub">3</sub>)<sub class="newformsub">3</sub>(SiO<sub class="newformsub">4</sub>)<sub class="newformsub">4</sub>(CO<sub class="newformsub">3</sub>)<sub class="newformsub">5</sub> · H<sub class="newformsub">2</sub>O</span></td></tr><tr><td class="mw6em">17.5.17</td><td class="mw12em"><a href="min-3623.html">Serendibite</a></td><td><span class="newformula">Ca<sub class="newformsub">4</sub>[Mg<sub class="newformsub">6</sub>Al<sub class="newformsub">6</sub>]O<sub class="newformsub">4</sub>[Si<sub class="newformsub">6</sub>B<sub class="newformsub">3</sub>Al<sub class="newformsub">3</sub>O<sub class="newformsub">36</sub>]</span></td></tr><tr><td class="mw6em">17.5.18</td><td class="mw12em"><a href="min-3788.html">Stillwellite-(Ce)</a></td><td><span class="newformula">(Ce,La,Ca)BSiO<sup class="newformsup newformabs"></sup><sub class="newformsub">5</sub></span></td></tr><tr><td class="mw6em">17.5.19</td><td class="mw12em"><a href="min-3866.html">Tadzhikite-(Ce)</a></td><td><span class="newformula">(Ca,Ce)<sub class="newformsub">4</sub>(Ce,Y)<sub class="newformsub">2</sub>(Ti<sup class="newformsup">4+</sup>,Fe<sup class="newformsup">3+</sup>,Al)[B<sub class="newformsub">4</sub>Si<sub class="newformsub">4</sub>O<sub class="newformsub">22</sub>](OH)<sup class="newformsup newformabs"></sup><sub class="newformsub">2</sub></span></td></tr><tr><td class="mw6em">17.5.20</td><td class="mw12em"><a href="min-2629.html">Melanocerite-(Ce)</a></td><td><span class="newformula">(Ce,Ca)<sub class="newformsub">5</sub>(SiO<sub class="newformsub">4</sub>,BO<sub class="newformsub">4</sub>)<sub class="newformsub">3</sub>(OH,0)</span></td></tr><tr><td class="mw6em">17.5.21</td><td class="mw12em"><a href="min-2966.html">Okanoganite-(Y)</a></td><td><span class="newformula">(Na,Ca)<sub class="newformsub">3</sub>(Y,Ce)<sub class="newformsub">12</sub>Si<sub class="newformsub">6</sub>B<sub class="newformsub">2</sub>O<sub class="newformsub">27</sub>F<sup class="newformsup newformabs"></sup><sub class="newformsub">14</sub></span></td></tr><tr><td class="mw6em">17.5.22</td><td class="mw12em"><a href="min-4026.html">Tritomite-(Ce)</a></td><td><span class="newformula">Ce<sub class="newformsub">5</sub>(SiO<sub class="newformsub">4</sub>,BO<sub class="newformsub">4</sub>)<sub class="newformsub">3</sub>(OH,O)</span></td></tr><tr><td class="mw6em">17.5.23</td><td class="mw12em"><a href="min-4027.html">Tritomite-(Y)</a></td><td><span class="newformula">Y<sub class="newformsub">5</sub>(SiO<sub class="newformsub">4</sub>,BO<sub class="newformsub">4</sub>)<sub class="newformsub">3</sub>(O,OH,F)</span></td></tr><tr><td class="mw6em">17.5.24</td><td class="mw12em"><a href="min-889.html">Cappelenite-(Y)</a></td><td><span class="newformula">Ba(Y,Ce)<sub class="newformsub">6</sub>Si<sub class="newformsub">3</sub>B<sub class="newformsub">6</sub>O<sub class="newformsub">24</sub>F<sup class="newformsup newformabs"></sup><sub class="newformsub">2</sub></span></td></tr><tr><td class="mw6em">17.5.25</td><td class="mw12em"><a href="min-1329.html">Dumortierite</a></td><td><span class="newformula">(Al,Fe<sup class="newformsup">3+</sup>)<sub class="newformsub">7</sub>(SiO<sub class="newformsub">4</sub>)<sub class="newformsub">3</sub>(BO<sub class="newformsub">3</sub>)O<sup class="newformsup newformabs"></sup><sub class="newformsub">3</sub></span></td></tr><tr><td class="mw6em">17.5.26</td><td class="mw12em"><a href="min-1925.html">Holtite</a></td><td><span class="newformula">(Ta<sub class="newformsub">0.6</sub>◻<sub class="newformsub">0.4</sub>)Al<sub class="newformsub">6</sub>BSi<sub class="newformsub">3</sub>O<sub class="newformsub">18</sub>(O,OH)<sup class="newformsup newformabs"></sup><sub class="newformsub">2.25</sub></span></td></tr><tr><td class="mw6em">17.5.27</td><td class="mw12em"><a href="min-1318.html">Dravite</a></td><td><span class="newformula">Na(Mg<sub class="newformsub">3</sub>)Al<sub class="newformsub">6</sub>(Si<sub class="newformsub">6</sub>O<sub class="newformsub">18</sub>)(BO<sub class="newformsub">3</sub>)<sub class="newformsub">3</sub>(OH)<sub class="newformsub">3</sub>(OH)</span></td></tr><tr><td class="mw6em">17.5.28 </td><td class="mw12em"><a href="min-1491.html">Ferridravite</a></td><td><span class="newformula"></span></td></tr><tr><td class="mw6em">17.5.29</td><td class="mw12em"><a href="min-2490.html">Axinite-(Mg)</a></td><td><span class="newformula">Ca<sub class="newformsub">2</sub>MgAl<sub class="newformsub">2</sub>BSi<sub class="newformsub">4</sub>O<sub class="newformsub">15</sub>OH</span></td></tr><tr><td class="mw6em">17.5.30</td><td class="mw12em"><a href="min-4126.html">Uvite</a></td><td><span class="newformula">Ca(Mg<sub class="newformsub">3</sub>)MgAl<sub class="newformsub">5</sub>(Si<sub class="newformsub">6</sub>O<sub class="newformsub">18</sub>)(BO<sub class="newformsub">3</sub>)<sub class="newformsub">3</sub>(OH)<sub class="newformsub">3</sub>(F/OH)</span></td></tr><tr><td class="mw6em">17.5.31</td><td class="mw12em"><a href="min-1652.html">Garrelsite</a></td><td><span class="newformula">Ba<sub class="newformsub">3</sub>NaSi<sub class="newformsub">2</sub>B<sub class="newformsub">7</sub>O<sub class="newformsub">16</sub>(OH)<sup class="newformsup newformabs"></sup><sub class="newformsub">4</sub></span></td></tr><tr><td class="mw6em">17.5.32</td><td class="mw12em"><a href="min-3958.html">Tienshanite</a></td><td><span class="newformula">KNa<sub class="newformsub">3</sub>Na<sub class="newformsub">6</sub>Ca<sub class="newformsub">2</sub>Ba<sub class="newformsub">6</sub>Mn<sub class="newformsub">6</sub>(Ti<sup class="newformsup">4+</sup>,Nb)<sub class="newformsub">6</sub>B<sub class="newformsub">12</sub>Si<sub class="newformsub">36</sub>O<sub class="newformsub">114</sub>(O,OH,F)<sup class="newformsup newformabs"></sup><sub class="newformsub">11</sub></span></td></tr><tr><td class="mw6em">17.5.33</td><td class="mw12em"><a href="min-2386.html">Leucosphenite</a></td><td><span class="newformula">BaNa<sub class="newformsub">4</sub>Ti<sub class="newformsub">2</sub>B<sub class="newformsub">2</sub>Si<sub class="newformsub">10</sub>O<sup class="newformsup newformabs"></sup><sub class="newformsub">30</sub></span></td></tr><tr><td class="mw6em">17.5.34</td><td class="mw12em"><a href="min-3888.html">Taramellite</a></td><td><span class="newformula">Ba<sub class="newformsub">4</sub>(Fe<sup class="newformsup">3+</sup>,Ti,Fe<sup class="newformsup">2+</sup>,Mg)<sub class="newformsub">4</sub>(B<sub class="newformsub">2</sub>Si<sub class="newformsub">8</sub>O<sub class="newformsub">27</sub>)O<sub class="newformsub">2</sub>Cl<sup class="newformsup newformabs"></sup><sub class="newformsub">x</sub></span></td></tr><tr><td class="mw6em">17.5.35</td><td class="mw12em"><a href="min-3980.html">Titantaramellite</a></td><td><span class="newformula">Ba<sub class="newformsub">4</sub>(Ti,Fe<sup class="newformsup">3+</sup>,Fe<sup class="newformsup">2+</sup>,Mg)<sub class="newformsub">4</sub>(B<sub class="newformsub">2</sub>Si<sub class="newformsub">8</sub>O<sub class="newformsub">27</sub>)O<sub class="newformsub">2</sub>Cl<sup class="newformsup newformabs"></sup><sub class="newformsub">x</sub></span></td></tr><tr><td class="mw6em">17.5.36</td><td class="mw12em"><a href="min-2828.html">Nagashimalite</a></td><td><span class="newformula">Ba<sub class="newformsub">4</sub>(V,Ti)<sub class="newformsub">4</sub>B<sub class="newformsub">2</sub>Si<sub class="newformsub">8</sub>O<sub class="newformsub">27</sub>(O,OH)<sub class="newformsub">2</sub>Cl</span></td></tr><tr><td class="mw6em">17.5.37</td><td class="mw12em"><a href="min-1031.html">Chromium-dravite</a></td><td><span class="newformula">Na(Mg<sub class="newformsub">3</sub>)Cr<sub class="newformsub newformsubabs">6</sub><sup class="newformsup">3+</sup>(Si<sub class="newformsub">6</sub>O<sub class="newformsub">18</sub>)(BO<sub class="newformsub">3</sub>)<sub class="newformsub">3</sub>(OH)<sub class="newformsub">3</sub>(OH)</span></td></tr><tr><td class="mw6em">17.5.38</td><td class="mw12em"><a href="min-4251.html">Wawayandaite</a></td><td><span class="newformula">Ca<sub class="newformsub">6</sub>Mn<sub class="newformsub">2</sub>BBe<sub class="newformsub">9</sub>Si<sub class="newformsub">6</sub>O<sub class="newformsub">23</sub>(OH,Cl)<sup class="newformsup newformabs"></sup><sub class="newformsub">15</sub></span></td></tr><tr><td class="mw6em">17.5.39</td><td class="mw12em"><a href="min-4270.html">Werdingite</a></td><td><span class="newformula">(Mg,Fe)<sub class="newformsub">2</sub>Al<sub class="newformsub">14</sub>Si<sub class="newformsub">4</sub>B<sub class="newformsub">4</sub>O<sup class="newformsup newformabs"></sup><sub class="newformsub">37</sub></span></td></tr><tr><td class="mw6em">17.5.40</td><td class="mw12em"><a href="min-2502.html">Axinite-(Mn)</a></td><td><span class="newformula">Ca<sub class="newformsub">2</sub>Mn<sup class="newformsup">2+</sup>Al<sub class="newformsub">2</sub>BSi<sub class="newformsub">4</sub>O<sub class="newformsub">15</sub>(OH)</span></td></tr><tr><td class="mw6em">17.5.41</td><td class="mw12em"><a href="min-440.html">Axinite</a></td><td><span class="newformula"></span></td></tr><tr><td class="mw6em">17.5.42</td><td class="mw12em"><a href="min-3972.html">Tinzenite</a></td><td><span class="newformula">Ca<sub class="newformsub">2</sub>Mn<sub class="newformsub newformsubabs">4</sub><sup class="newformsup">2+</sup>Al<sub class="newformsub">4</sub>[B<sub class="newformsub">2</sub>Si<sub class="newformsub">8</sub>O<sub class="newformsub">30</sub>](OH)<sup class="newformsup newformabs"></sup><sub class="newformsub">2</sub></span></td></tr><tr><td class="mw6em">17.5.44</td><td class="mw12em"><a href="min-3578.html">Schorl</a></td><td><span class="newformula">Na(Fe<sub class="newformsub newformsubabs">3</sub><sup class="newformsup">2+</sup>)Al<sub class="newformsub">6</sub>(Si<sub class="newformsub">6</sub>O<sub class="newformsub">18</sub>)(BO<sub class="newformsub">3</sub>)<sub class="newformsub">3</sub>(OH)<sub class="newformsub">3</sub>(OH)</span></td></tr><tr><td class="mw6em">17.5.45</td><td class="mw12em"><a href="min-818.html">Fluor-buergerite</a></td><td><span class="newformula">Na(Fe<sub class="newformsub newformsubabs">3</sub><sup class="newformsup">3+</sup>)Al<sub class="newformsub">6</sub>(Si<sub class="newformsub">6</sub>O<sub class="newformsub">18</sub>)(BO<sub class="newformsub">3</sub>)<sub class="newformsub">3</sub>O<sub class="newformsub">3</sub>F</span></td></tr><tr><td class="mw6em">17.5.46</td><td class="mw12em"><a href="min-1540.html">Feruvite</a></td><td><span class="newformula">Ca(Fe<sup class="newformsup">2+</sup>)<sub class="newformsub">3</sub>MgAl<sub class="newformsub">5</sub>(Si<sub class="newformsub">6</sub>O<sub class="newformsub">18</sub>)(BO<sub class="newformsub">3</sub>)<sub class="newformsub">3</sub>(OH)<sub class="newformsub">3</sub>(OH)</span></td></tr><tr><td class="mw6em">17.5.47</td><td class="mw12em"><a href="min-1459.html">Axinite-(Fe)</a></td><td><span class="newformula">Ca<sub class="newformsub">2</sub>Fe<sup class="newformsup">2+</sup>Al<sub class="newformsub">2</sub>BSi<sub class="newformsub">4</sub>O<sub class="newformsub">15</sub>OH</span></td></tr><tr><td class="mw6em">17.5.48</td><td class="mw12em"><a href="min-1926.html">Homilite</a></td><td><span class="newformula">Ca<sub class="newformsub">2</sub>(Fe<sup class="newformsup">2+</sup>,Mg)B<sub class="newformsub">2</sub>Si<sub class="newformsub">2</sub>O<sup class="newformsup newformabs"></sup><sub class="newformsub">10</sub></span></td></tr><tr><td class="mw6em">17.5.49</td><td class="mw12em"><a href="min-1737.html">Grandidierite</a></td><td><span class="newformula">(Mg,Fe<sup class="newformsup">2+</sup>)(Al,Fe<sup class="newformsup">3+</sup>)<sub class="newformsub">3</sub>(SiO<sub class="newformsub">4</sub>)(BO<sub class="newformsub">3</sub>)O<sup class="newformsup newformabs"></sup><sub class="newformsub">2</sub></span></td></tr><tr><td class="mw6em">17.5.50</td><td class="mw12em"><a href="min-1961.html">Hyalotekite</a></td><td><span class="newformula">(Pb,Ba,K)<sub class="newformsub">4</sub>(Ca,Y)<sub class="newformsub">2</sub>(B,Be)<sub class="newformsub">2</sub>(Si,B)<sub class="newformsub">2</sub>Si<sub class="newformsub">8</sub>O<sub class="newformsub">28</sub>(F,Cl)</span></td></tr><tr><td class="mw6em">17.5.51</td><td class="mw12em"><a href="min-1852.html">Hellandite-(Y)</a></td><td><span class="newformula">(Ca,REE)<sub class="newformsub">4</sub>Y<sub class="newformsub">2</sub>Al(Be,Li)<sub class="newformsub">2-x</sub>B<sub class="newformsub">4</sub>Si<sub class="newformsub">4</sub>O<sub class="newformsub">22</sub>(OH)<sup class="newformsup newformabs"></sup><sub class="newformsub">2</sub></span></td></tr></table></div></div><h2 class="mindatadivh2">Other Names for Datolite</h2><div class="mindatarow"><div class="mindatath"><a href="/web/20160918182856/http://www.mindat.org/glossary/synonym">Synonyms:</a></div><div class="mindatam2"><div class="newgrouptable2"><p><a href="min-25615.html">Datholite</a></p><p><a href="min-39198.html">Dystome Spar</a></p><p><a href="min-42959.html">Esmarkite (of Hausmann)</a></p></div></div></div><div class="mindatarow"><div class="mindatath">Name in Other Languages:</div><div class="mindatam2"><div class="newgrouptable3"><div><b>Dutch:</b><span><a href="min-36900.html">Datoliet</a></span></div><div><b>German:</b><span><a href="min-36898.html">Datolith</a><br><a href="min-13912.html">Datolit</a></span></div><div><b>Italian:</b><span><a href="min-1340.html">Datolite</a></span></div><div><b>Lithuanian:</b><span><a href="min-36899.html">Datolitas</a></span></div><div><b>Russian:</b><span><a href="min-33274.html">Датолит</a></span></div><div><b>Simplified Chinese:</b><span><a href="min-45080.html">硅硼钙石</a></span></div><div><b>Spanish:</b><span><a href="min-13913.html">Datolita</a></span></div><div><b>Swedish:</b><span><a href="min-13912.html">Datolit</a></span></div><div><b>Traditional Chinese:</b><span><a href="min-45081.html">矽硼鈣石</a></span></div></div></div></div><div class="mindatarow"><div class="mindatath"><a href="/web/20160918182856/http://www.mindat.org/glossary/variety">Varieties:</a></div><div class="mindatam2"><div class="newgrouptable2"><p><a href="min-734.html">Botryolite</a></p></div></div></div><h2 class="mindatadivh2">Other Information</h2><div class="mindatarow"><div class="mindatath">Health Risks:</div><div class="mindatam2">No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.</div></div><h2 class="mindatadivh2">References for Datolite</h2><div class="mindatarow"><div class="mindatath">Reference List:</div><div class="mindatam2"><div id="minreflist"></div>Klaproth, M.H. (1806) Chemische Untersuchung des Datoliths. Neues allgemeines Journal der Chemie. 6, 107-110<br/> <br/> Klaproth, M.H. (1807) Chemische Untersuchung des Datoliths. Beiträge zur chemischen Kenntniss der Mineralkörper, Vierter Band, Rottmann Berlin, 354-359<br/> <br/> Hausmann, J.F.L (1810) Bermerkungen über den Datolith, von der Nödebroe-Grube bei Arendal in Norwegen. Beiträge zur Naturkunde, 2, 59-67<br/> <br/> Anderson, C. (1906) Mineralogical Notes: No. III - Axinite, petterdite, crocoite, datolite. Records of the Australian Museum: 6(3), 133-144.<br/> <br/> Foit, Jr., F.F., Phillips, M.W., and Gibbs, G.V. (1973) A Refinement of the Crystal Structure of Datolite, CaBSiO4(OH). American Mineralogist 58, 909-914.<br/> <br/> Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).<br/> <br/> Bellatreccia, F., Cámara, F., Della Ventura, G. (2006) Datolite: a new occurrence in volcanic ejecta (Pitigliano, Toscana, Italy) and crystal-structure refinement. Rendiconti dell'Accademia Nazionale dei Lincei, Scienze Fisiche e Naturali, Serie 9, 17, 289-298.<br/> <br/> Rocks & Minerals (2010) 85:338-345<br/> </div></div><h2 class="mindatadivh2">Internet Links for Datolite</h2><div class="mindatarow"><div class="mindatath">Search Engines:</div><div class="mindatam2"> <form method="get" name="googleform" action="https://web.archive.org/web/20160918182856/http://www.google.com/custom" target="_blank"> <input type="hidden" name="q" size="31" maxlength="255" value="datolite"></input> <input type="hidden" name="client" value="pub-7737835674400043"></input> <input type="hidden" name="forid" value="1"></input> <input type="hidden" name="ie" value="ISO-8859-1"></input> <input type="hidden" name="oe" value="ISO-8859-1"></input> <input type="hidden" name="cof" value="GALT:#008000;GL:1;DIV:#336699;VLC:663399;AH:center;BGC:FFFFFF;LBGC:336699;ALC:0000FF;LC:0000FF;T:000000;GFNT:0000FF;GIMP:0000FF;FORID:1;"></input> <input type="hidden" name="hl" value="en"></input> </form> <li><a href="#" onclick="document.googleform.submit();">Look for Datolite on Google</a></li>  <li><a target="_blank" href="/web/20160918182856/http://www.mindat.org/click.php?enc=aHR0cDovL3d3dy5nb29nbGUuY29tL2ltYWdlcz9xPWRhdG9saXRl">Look for Datolite images on Google</a></li></div></div><div class="mindatarow"><div class="mindatath">External Links:</div><div class="mindatam2"><li><a target="_blank" href="/web/20160918182856/http://www.mindat.org/click.php?enc=aHR0cDovL3d3dy53ZWJtaW5lcmFsLmNvbS9kYXRhL0RhdG9saXRlLnNodG1s">Look for Datolite on Webmineral</a></li><li><a target="_blank" href="/web/20160918182856/http://www.mindat.org/click.php?enc=aHR0cDovL2VuLndpa2lwZWRpYS5vcmcvd2lraS9EYXRvbGl0ZQ%3D%3D">Look for Datolite on Wikipedia</a></li><li><a target="_blank" href="/web/20160918182856/http://www.mindat.org/click.php?enc=aHR0cDovL3d3dy5taW5lcmFsaWVuYXRsYXMuZGUvbGV4aWtvbi9pbmRleC5waHAvRGF0b2xpdGU%2FbGFuZz1lbg%3D%3D">Look for Datolite on Mineralien Atlas</a></li><li><a target="_blank" href="/web/20160918182856/http://www.mindat.org/click.php?enc=aHR0cDovL3JydWZmLmdlby5hcml6b25hLmVkdS9ycnVmZi9uZXdfcnJ1ZmYvY29uc3RydWN0b3IucGhwP3R4dF9taW5lcmFsPWRhdG9saXRlJnNlbF9jaGVtaXN0cnlfaW5jbF9ib29sPWFuZCZ0eHRfY2hlbWlzdHJ5X2luY2w9JnNlbF9jaGVtaXN0cnlfZXhjbF9ib29sPWFuZCZ0eHRfY2hlbWlzdHJ5X2V4Y2w9JnNlbF9nZW5lcmFsX2Jvb2w9YW5kJnR4dF9nZW5lcmFsPSZzZWxfc29ydD1uYW1lcyZzZWxfc29ydF9kaXI9YXNjJmxpbWl0PTEwMDAwMCZvZmZzZXQ9MCZyPXNhbXBsZV9zZWFyY2gmbmV3X3NhbXBsZV9zZWFyY2g9MQ%3D%3D">Raman and XRD data at RRUFF project</a></li><li><a target="_blank" href="/web/20160918182856/http://www.mindat.org/click.php?enc=aHR0cDovL3JydWZmLmdlby5hcml6b25hLmVkdS9BTVMvcmVzdWx0LnBocD9taW5lcmFsPWRhdG9saXRl">American Mineralogist Crystal Structure Database</a></li><li><a target="_blank" href="/web/20160918182856/http://www.mindat.org/click.php?enc=aHR0cDovL3JydWZmLmdlby5hcml6b25hLmVkdS9kb2NsaWIvaG9tL2RhdG9saXRlLnBkZg%3D%3D">Datolite details from Handbook of Mineralogy (PDF)</a></li></div></div><div class="mindatarow"><div class="mindatath">Mineral Dealers:</div><div class="mindatam2"><li><a target="_blank" href="minclick.php?cid=302&m=Datolite"><b>Search for - Datolite - on e-Rocks Mineral Sales & Auctions</b></a><li><a target="_blank" href="minclick.php?cid=228&m=Datolite"><b>High-end worldwide specimens & outstanding customer service</b></a><li><a target="_blank" href="minclick.php?cid=66&m=Datolite"><b>MINSERVICE - buy on www.minservice.com - Worldwide Classical and Rarity</b></a><li><a target="_blank" href="minclick.php?cid=1402&m=Datolite"><b>Wendel Minerals - Auction & Shop</b></a><li><a target="_blank" href="minclick.php?cid=4&m=Datolite"><b>Find Datolite on www.crystalclassics.co.uk</b></a><li><a target="_blank" href="minclick.php?cid=1826&m=Datolite"><b>Buy RARE Minerals from Rocks of Africa</b></a><li><a target="_blank" href="minclick.php?cid=4590&m=Datolite"><b>Quality Minerals at Fair Prices</b></a><li><a target="_blank" href="minclick.php?cid=924&m=Datolite"><b>Rare and Unusual minerals at Mineralogical Research Company</b></a><li><a target="_blank" href="minclick.php?cid=173&m=Datolite"><b>The Arkenstone - Fine Minerals</b></a><li><a target="_blank" href="minclick.php?cid=307&m=Datolite"><b>Top quality minerals from Kristalle of California</b></a><li><a target="_blank" href="minclick.php?cid=74&m=Datolite"><b>DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.</b></a><li><a target="_blank" href="minclick.php?cid=179&m=Datolite"><b>Fine Minerals from Weinrich Minerals, Inc.</b></a></div></div><div class="mindatarow"><div class="mindatath">Specimens:</div><div class="mindatam2">The following <a href="https://web.archive.org/web/20160918182856/http://www.minfind.com/minsearch-1340.html">Datolite specimens</a> are currently listed for sale on <a href="https://web.archive.org/web/20160918182856/http://www.minfind.com/">minfind.com</a>.</div></div><div class="mindatarow"><div class="minfindrow"><div id="minfindsales"><div class="minfindbox"><a title="Click for full details" target="_blank" href="https://web.archive.org/web/20160918182856/http://www.minfind.com/mineral-194416.html"><img src="https://web.archive.org/web/20160918182856im_/http://www.minfind.com/mfthumbs/90_90_000000_1104424668534385e9e8a5e.jpg"></a></div><div class="minfindbox"><a title="Click for full details" target="_blank" href="https://web.archive.org/web/20160918182856/http://www.minfind.com/mineral-421008.html"><img src="https://web.archive.org/web/20160918182856im_/http://www.minfind.com/mfthumbs/90_90_000000_1510670143570ec4cd679df.jpg"></a></div><div class="minfindbox"><a title="Click for full details" target="_blank" href="https://web.archive.org/web/20160918182856/http://www.minfind.com/mineral-359256.html"><img src="https://web.archive.org/web/20160918182856im_/http://www.minfind.com/mfthumbs/90_90_000000_1913885255316ed6253b29.jpg"></a></div><div class="minfindbox"><a title="Click for full details" target="_blank" href="https://web.archive.org/web/20160918182856/http://www.minfind.com/mineral-31210.html"><img src="https://web.archive.org/web/20160918182856im_/http://www.minfind.com/mfthumbs/90_90_000000_5284843054c34287947cb1.jpg"></a></div><div class="minfindbox"><a title="Click for full details" target="_blank" href="https://web.archive.org/web/20160918182856/http://www.minfind.com/mineral-356963.html"><img src="https://web.archive.org/web/20160918182856im_/http://www.minfind.com/mfthumbs/90_90_000000_136409360455edd30eb625d.jpg"></a></div><div class="minfindbox"><a title="Click for full details" target="_blank" href="https://web.archive.org/web/20160918182856/http://www.minfind.com/mineral-16297.html"><img src="https://web.archive.org/web/20160918182856im_/http://www.minfind.com/mfthumbs/90_90_000000_129232993854ff15ac15313.jpg"></a></div><div class="minfindbox"><a title="Click for full details" target="_blank" href="https://web.archive.org/web/20160918182856/http://www.minfind.com/mineral-358972.html"><img src="https://web.archive.org/web/20160918182856im_/http://www.minfind.com/mfthumbs/90_90_000000_158738964150d1681523cfa.jpg"></a></div></div></div></div><h2 class="mindatadivh2">Localities for Datolite</h2><div><script src="https://web.archive.org/web/20160918182856js_/http://maps.google.com/maps?file=api&v=2.x&key=ABQIAAAAm-xZ3u9aE1vb4dR1ljHcYxQMi5r89rdz1J4w5J5kydlBHHYrYxRfm0Lma8xoABAdaznXnQBrVbuSgw" type="text/javascript"></script> <script type="text/javascript"> SafeAddOnunload(GUnload); </script> <script src="/web/20160918182856js_/http://www.mindat.org/gmjs-mineral.php?id=1340" type="text/javascript"></script> <script src="/web/20160918182856js_/http://www.mindat.org/clusterer2.js" type="text/javascript"></script> <script type="text/javascript"> var map; var clus; var icon; SafeAddOnload(gmapload); function gmapload() { if(GBrowserIsCompatible()) { var mapele = 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