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39. Yttrium - Elementymology & Elements Multidict

<HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=windows-1251"> <LINK REL=STYLESHEET HREF="lib/elements.css" TYPE="text/css"> <META name= "Author" content= "Peter van der Krogt"> <META NAME="DESCRIPTION" CONTENT="Origin of the names of the chemical elements and multilingual dictionary of element names (72 languages); Periodic table and how the elements got their names; Process of naming the elements on the periodic table"> <META NAME="KEYWORDS" CONTENT="chemical elements, periodical table, multilingual dictionary, etymology, history, discovery, chemists"> <META NAME="ROBOTS" CONTENT="INDEX, FOLLOW"> <META NAME="REVISIT-AFTER" CONTENT="3 MONTH"> <SCRIPT language="JavaScript" src="lib/open.js"></script> <div id="overDiv" style="position:absolute; visibility:hidden; z-index:1000;"></div> <script language="JavaScript" src="lib/overlib.js"> <!-- overLIB (c) Erik Bosrup --> </script> <TITLE>39. Yttrium - Elementymology &amp; Elements Multidict</TITLE> </HEAD> <BODY onLoad="self.name = 'hheli'" onUnload="self.name = ''"> <table border="1" bordercolor="Black" width="100%"> <tr> <td background="ikon/metal034.jpg" width="10%" align="center"> <INPUT type="button" value="<-- Back" onclick="history.back()"> </td> <td align="center" valign="middle" background="ikon/metal034.jpg"><h1 style="color: Yellow;">Elementymology &amp; Elements Multidict</h1></td> <td background="ikon/metal034.jpg" width="10%" align="center"> <script src="//t1.extreme-dm.com/f.js" id="eXF-krogtele-2" async defer></script> </td> </tr></table> <div style="font-family: 'Times New Roman'; font-size: 12px; text-align: center; color: Maroon;">This site comprises 120 pages of text and photos, one for each element, and several pages for access. &ndash; For captions or explanatory texts move your mouse over illustrations, links etc.</div><p> <div id="hoofdmenu"> <ul> <li><a href="index.php">Introduction</a></li> <li><a href="ptable.php">Periodic&nbsp;Table</a></li> <li><a href="list_element.php" id="current">Elements</a></li> <li><a href="multidict.php">Languages</a></li> <li><a href="indexes.php">Indexes</a></li> <li><a href="specials.php">Specials</a></li> <li><a href="rpdt.php">Contact</a></li> </ul> </div> <!-- HEADER --> <table width="100%" border="1" bordercolor="#FFFFFF" bgcolor="White"> <tr> <td bgcolor="#EAFEFF" width="200" onmouseover="return overlib('Click arrow for previous or next atomic number',WIDTH,230);" onmouseout="return nd();"> <div style="text-align: center; font-family: 'Times New Roman'; font-size: 44px; color: Maroon;"> <a href="element.php?num=38"><img src="ikon/1_prev.gif" border=0 alt=""></a> 39 <a href="element.php?num=40"><img src="ikon/1_next.gif" border=0 alt=""></a> </div> <td> <td bgcolor="#EAFEFF" bgcolor="White" onmouseover="return overlib('Element name in<br><b>Latin</b> and - if different - <b><i>English</i><br>Dutch - German - French - Spanish - Japanese - Russian - Chinese</b>',WIDTH,250);" onmouseout="return nd();"> <div style="text-align: center; font-family: 'Times New Roman'; font-size: 44px; color: Maroon;"> <u>Y</u>ttrium </div> <div style="text-align: center; font-family: 'Times New Roman'; font-size: 20px; color: Maroon;"> Yttrium &ndash; Yttrium &ndash; Yttrium &ndash; Itrio &ndash; &#12452;&#12483;&#12488;&#12522;&#12454;&#12512; &ndash; &#x0418;&#x0442;&#x0442;&#x0440;&#x0438;&#x0439; &ndash; &#x91D4; </div> <td> <td bgcolor="#EAFEFF" width="200" onmouseover="return overlib('Click arrow for previous or next element in alphabetical order of symbol',WIDTH,230);" onmouseout="return nd();"> <div style="text-align: center; font-family: 'Times New Roman'; font-size: 44px; color: Maroon;"> <a href="element.php?sym=Xe"><img src="ikon/a_prev.gif" border=0 alt=""></a> Y <a href="element.php?sym=Yb"><img src="ikon/a_next.gif" border=0 alt=""></a> </div> </td> </tr> </table> <table border="0" bordercolor="Blue" width="100%"> </tr> <td style="padding: 10px; background: #EAFEFF; vertical-align: top; width: 20%;"> <div style="text-align: center; font-family: 'Times New Roman'; font-size: 22px; color: Maroon;">Multilingual dictionary</div> <br><div style="font-family: 'Times New Roman'; font-size: 16px; font-weight: bold; color: Maroon;">Indo-European</div> Yttrium <font size="-1"><i>Latin</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; color: Maroon;">&#151; Germanic</div> Ittrium <font size="-1"><i>Afrikaans</i></font><br> Yttrium <font size="-1"><i>Danish</i></font><br> Yttrium <font size="-1"><i>German</i></font><br> Yttrium <font size="-1"><i>English</i></font><br> Yttrium <font size="-1"><i>Faroese</i></font><br> Yttrium <font size="-1"><i>Frisian (West)</i></font><br> Yttr&#237;n <font size="-1"><i>Icelandic</i></font><br> Yttrium <font size="-1"><i>Luxembourgish</i></font><br> Yttrium <font size="-1"><i>Dutch</i></font><br> Yttrium <font size="-1"><i>Norwegian</i></font><br> Yttrium <font size="-1"><i>Swedish</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; color: Maroon;">&#151; Italic</div> Itrio <font size="-1"><i>Aragonese</i></font><br> Itriumu <font size="-1"><i>Aromanian</i></font><br> Itriu <font size="-1"><i>Asturian</i></font><br> Itri <font size="-1"><i>Catalan</i></font><br> Itrio <font size="-1"><i>Spanish</i></font><br> Yttrium <font size="-1"><i>French</i></font><br> Itri <font size="-1"><i>Friulian</i></font><br> Itrio <font size="-1"><i>Galician</i></font><br> Ittrio <font size="-1"><i>Italian</i></font><br> &#205;tri <font size="-1"><i>Lombard</i></font><br> Ittri <font size="-1"><i>Occitan</i></font><br> Itrio <font size="-1"><i>Portuguese</i></font><br> Ytriu <font size="-1"><i>Romanian - Moldovan</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; color: Maroon;">&#151; Slavic</div> &#x0418;&#x0442;&#x0440;&#x0438;&#x0439; <font size="-1">[Itrij] <i>Bulgarian</i></font><br> Itrij[um] <font size="-1"><i>Bosnian</i></font><br> I&#x0442;&#x0440;&#x044b;&#x0439; <font size="-1">[itryj] <i>Belarusian</i></font><br> Yttrium <font size="-1"><i>Czech</i></font><br> Itrij <font size="-1"><i>Croatian</i></font><br> &#201;ter <font size="-1"><i>Kashubian</i></font><br> &#x0418;&#x0442;&#x0440;&#x0438;&#x0443;&#x043c; <font size="-1">[Itrium] <i>Macedonian</i></font><br> Itr <font size="-1"><i>Polish</i></font><br> &#x0418;&#x0442;&#x0442;&#x0440;&#x0438;&#x0439; <font size="-1">[Ittrij] <i>Russian</i></font><br> Ytrium <font size="-1"><i>Slovak</i></font><br> Itrij <font size="-1"><i>Slovenian</i></font><br> &#x0418;&#x0442;&#x0440;&#x0438;&#x0458;&#x0443;&#x043c; <font size="-1">[Itrijum] <i>Serbian</i></font><br> I&#x0442;&#x0440;&#x0456;&#x0439; <font size="-1">[itrij] <i>Ukrainian</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; color: Maroon;">&#151; Baltic</div> Itris <font size="-1"><i>Lithuanian</i></font><br> Itrijs <font size="-1"><i>Latvian</i></font><br> &#278;tris <font size="-1"><i>Samogitian</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; color: Maroon;">&#151; Celtic</div> Itriom <font size="-1"><i>Breton</i></font><br> Ytriwm <font size="-1"><i>Welsh</i></font><br> Itriam <font size="-1"><i>Gaelic (Irish)</i></font><br> Itriam <font size="-1"><i>Gaelic (Scottish)</i></font><br> Yttrium <font size="-1"><i>Gaelic (Manx)</i></font><br> Ytryum <font size="-1"><i>Cornish</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; color: Maroon;">&#151; Other Indo-European</div> &#x3a5;&#x3c4;&#x3c4;&#x3c1;&#x3b9;&#x3bf; <font size="-1">[yttrio] <i>Greek</i></font><br> &#x053b;&#x057f;&#x0580;&#x056b;&#x0578;&#x0582;&#x0574; <font size="-1">[itrium] <i>Armenian</i></font><br> Itrium, &sup2;Yttriumi <font size="-1"><i>Albanian</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; color: Maroon;">&#151; Indo-Iranian/Iranian</div> &#206;triy&#251;m <font size="-1"><i>Kurdish</i></font><br> &#x0418;&#x0442;&#x0442;&#x0440;&#x0438;&#x0439; <font size="-1">[Ittrij] <i>Ossetian</i></font><br> &#x0418;&#x0442;&#x0442;&#x0440;&#x0438;&#x0439; <font size="-1">[Ittri&#39;] <i>Tajik</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; color: Maroon;">&#151; Indo-Iranian/Indo-Aryan</div> &#2439;&#2463;&#2480;&#2495;&#2479;&#2492;&#2494;&#2478; <font size="-1">[i&#7789;ri&#7823;&#257;ma] <i>Bengali</i></font><br> &#1575;&#1740;&#1578;&#1585;&#1740;&#1605; <font size="-1">[aytrym] <i>Persian</i></font><br> &#x0A87;&#x0A9F;&#x0ACD;&#x0AB0;&#x0AC0;&#x0AAF;&#x0AAE;&#x0AA8;&#x0ACB; <font size="-1">[i&#7789;r&#299;yamano] <i>Gujarati</i></font><br> &#2311;&#2340;&#2381;&#2352;&#2367;&#2351;&#2350; <font size="-1">[itriyama] <i>Hindi</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; font-weight: bold; color: Maroon;">Finno-Ugric</div> &#252;trium <font size="-1"><i>Estonian</i></font><br> Yttrium <font size="-1"><i>Finnish</i></font><br> Ittrium <font size="-1"><i>Hungarian</i></font><br> &#x0418;&#x0442;&#x0442;&#x0440;&#x0438;&#x0439; <font size="-1">[Ittrij] <i>Komi</i></font><br> &#x0418;&#x0442;&#x0442;&#x0440;&#x0438;&#x0439; <font size="-1">[Ittrij] <i>Mari</i></font><br> &#x0418;&#x0442;&#x0440;&#x0438; <font size="-1">[itri] <i>Moksha</i></font><br> &#252;trium <font size="-1"><i>V&#245;ro</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; font-weight: bold; color: Maroon;">Altaic</div> &#304;ttrium <font size="-1"><i>Azerbaijani</i></font><br> &#x0418;&#x0442;&#x0442;&#x0440;&#x0438; <font size="-1">[Ittri] <i>Chuvash</i></font><br> &#x0418;&#x0442;&#x0442;&#x0440;&#x0438;&#x0439; <font size="-1">[ittrij] <i>Kazakh</i></font><br> &#x0418;&#x0442;&#x0442;&#x0440;&#x0438;&#x0439; <font size="-1">[Ittrij] <i>Kyrgyz</i></font><br> &#x0418;&#x0442;&#x0442;&#x0440;&#x0438; <font size="-1">[ittri] <i>Mongolian</i></font><br> &#304;triyum <font size="-1"><i>Turkish</i></font><br> &#1574;&#1609;&#1578;&#1578;&#1585;&#1609;&#1610; <font size="-1">[&#39;ittriy] <i>Uyghur</i></font><br> Ittriy <font size="-1"><i>Uzbek</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; font-weight: bold; color: Maroon;">Other (Europe)</div> Itrioa <font size="-1"><i>Basque</i></font><br> &#x10d8;&#x10e2;&#x10e0;&#x10d8;&#x10e3;&#x10db;&#x10d8; <font size="-1">[itriumi] <i>Georgian</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; font-weight: bold; color: Maroon;">Afro-Asiatic</div> &#x064a;&#x062a;&#x0631;&#x064a;&#x0648;&#x0645; <font size="-1">[&#299;triy&#363;m] <i>Arabic</i></font><br> &#x05d0;&#x05d9;&#x05d8;&#x05e8;&#x05d9;&#x05d5;&#x05dd; <font size="-1">[itrium] <i>Hebrew</i></font><br> Ittrijum, &sup2;Ittrju <font size="-1"><i>Maltese</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; font-weight: bold; color: Maroon;">Sino-Tibetan</div> Yet (&#37332;) <font size="-1"><i>Hakka</i></font><br> &#12452;&#12483;&#12488;&#12522;&#12454;&#12512; <font size="-1">[ittoriumu] <i>Japanese</i></font><br> &#xc774;&#xd2b8;&#xb968; <font size="-1">[iteuryum] <i>Korean</i></font><br> &#x0e2d;&#x0e34;&#x0e15;&#x0e40;&#x0e17;&#x0e23;&#x0e35;&#x0e22;&#x0e21; <font size="-1">[itthriam] <i>Thai</i></font><br> Ytri <font size="-1"><i>Vietnamese</i></font><br> &#x91D4; <font size="-1">[yi1 / yuet9] <i>Chinese</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; font-weight: bold; color: Maroon;">Malayo-Polynesian</div> Itriyo <font size="-1"><i>Cebuano</i></font><br> Itrium <font size="-1"><i>Indonesian</i></font><br> Yttrium <font size="-1"><i>M&#257;ori</i></font><br> Ytrium <font size="-1"><i>Malay</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; font-weight: bold; color: Maroon;">Other Asiatic</div> &#3375;&#3391;&#3359;&#3405;&#3376;&#3391;&#3375;&#3330; <font size="-1">[yi&#7789;riyam] <i>Malayalam</i></font><br> &#x0BAF;&#x0BBF;&#x0BB1;&#x0BCD;&#x0BB1;&#x0BBF;&#x0BAF;&#x0BAE;&#x0BCD; <font size="-1">[yi&#7775;&#7775;&#355;iyam] <i>Tamil</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; font-weight: bold; color: Maroon;">Africa</div> Yetibu (Yb?) <font size="-1"><i>Lingala</i></font><br> Yttriamo <font size="-1"><i>Sesotho</i></font><br> Yitri <font size="-1"><i>Swahili</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; font-weight: bold; color: Maroon;">North-America</div> Itrio <font size="-1"><i>Nahuatl</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; font-weight: bold; color: Maroon;">South-America</div> Itriyu <font size="-1"><i>Quechua</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; font-weight: bold; color: Maroon;">Creole</div> Itrimi <font size="-1"><i>Sranan Tongo</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; font-weight: bold; color: Maroon;">Artificial</div> Itrio <font size="-1"><i>Esperanto</i></font><br> <br><div style="font-family: 'Times New Roman'; font-size: 16px; font-weight: bold; color: Maroon;">New names</div> Itrion <font size="-1"><i>Atomic Elements</i></font><br> Electronica <font size="-1"><i>Dorseyville</i></font><br> </td> <td style="vertical-align: top; text-indent: 20px; padding: 10px;"> <table style="font-family : 'Arial'; font-size : 16; font-weight : bold; text-align : center; background-color : White; width : 100%; border : 4px Blue; border-style : double;" border="1"> <tr> <td width="10%" valign="top" align="center" onMouseOver="return overlib('<b><i>Periodic Table Memory Peg</i></b><p>A Tree. <b>Y</b>-shaped, with a &quot;39&quot; carved in it. Sounds like yttrium.<p>&copy; John P. Pratt.',WIDTH,230);" onMouseOut="return nd();"> <font size="-1">memory peg</font><p> <a href="http://www.johnpratt.com/atomic/periodic.html" target="_blank"> <img src="pratt/Y.gif" width="32" height="32" border="0"></a> </td> <td onmouseover="return overlib('Physical data',WIDTH,200);" onmouseout="return nd();"> Shiny steel-gray metal <br> <font size="-1">melting point 1522 &deg;C; 2772 &deg;F<br> boiling point 3338 &deg;C; 6040 &deg;F<br> density 4.47 g/cc; 278.99 pounds/cubic foot</font> </td> <td width="190" rowspan="3"> <a href="javascript:void(0);" onmouseover="return overlib('Photo elements 1-111 from the Justin Urgitis Element Collection, 112-118 made by Matt von Wenden.',WIDTH,200);" onmouseout="return nd();"> <img src="jdurg/Y.jpg" width="185" height="185" border="0"> </a> </td> </tr><tr> <td colspan="2" onMouseOver="return overlib('Date and discoverer',150);" onmouseout="return nd();"> 1794 Johan Gadolin, Finland </td> </tr><tr> <td colspan="2" onMouseOver="return overlib('Name origin',150);" onmouseout="return nd();"> Ytterby, village in Sweden (just as Ytterbium, Erbium, and Terbium!)<br> named by Anders Gustaf Ekeberg </td> </tr> </table> <!-- TEKST --> <p> <div class="titel">History &amp; Etymology</div> <p> <a href="javascript:void(0);" onmouseover="return overlib('Carl Gustav Mosander');" onmouseout="return nd();"> <img src="images/portret/mosander2.jpg" alt="" width="113" height="138" border="0" align="left"></a> <a href="rareearths.php" onmouseover="return overlib('Elements discovered in yttria.<br>Click for the story of the rare earths');" onmouseout="return nd();" > <img src="schema/schema_yttria_klein.gif" alt="" width="265" height="269" border="0" align="right"></a> <P> The chemist Lieutenant Carl Axel Arrhenius (1757-1824), student of the Swedish chemist Berzelius, found in 1787 in the dumps of the Ytterby quarry (for information and illustrations of Ytterby's quarry and a location map see the <a href="rareearths.php">Rare Earths page</a>) an interesting find, an exceptionally heavy piece of black broken rock. He named it <u>ytterbite</u> after the location with the standard suffix <i>-ite</i> added to indicate a mineral. This stone was sent to, among others, Johan Gadolin (1760-1852), professor at &Aring;bo University. <br clear="all"> <a href="http://www.trinityminerals.com/index.htm" target="_blank" onmouseover="return overlib('<center>Pegmatite with large grains of gadolinite-Y to 2 cm across.<br>Photo courtesy of John Veevaert,<br>&copy; Trinity Mineral Company.<br>Click for their website.<br><I>(Offsite, so it opens in another window)</I></center>');" onmouseout="return nd();"> <img src="images/elements/Y_Gadolinite(trinity).jpg" alt="" width="315" height="250" border="0" align="left"></a> Gadolin found that the &quot;black stone of Ytterby&quot; was composed of 38% of a new &quot;earth type&quot; (&quot;earths&quot; are compounds of elements, usually oxides). He concluded his analysis in 1794 and named this new earth <u>ytterbia</u> <a href="javascript:void(0);" onmouseover="return overlib('Johan Gadolin, &quot;Unders&ouml;kning af en svart tung Stenart ifr&aring;n Ytterby Stenbrott i Roslagen.&quot; <i>Kongl. Vetenskaps Academiens Nya Handlingar</i> vol. 15, 1794, pp. 137-155.');" onmouseout="return nd();">(note)</a>. His analysis was confirmed three years (1797) later when Anders Gustaf Ekeberg (1767-1813) analysed a larger sample. Ekeberg shortened the name to <u>yttria</u>. In the decades after Antoine Lavoisier developed the new chemistry built on the concept that earths could be reduced to their elements, the discovery of a new earth (with name ending in &quot;a&quot;) was regarded as equivalent to discovering the element within. Thus the element reducible from the earth <u>yttria</u> would be Yttrium. <p>However, <u>yttria</u> was in fact it was a mixture of a number of metal oxides. In 1843, Carl Gustav Mosander (1797-1858) separated <u>yttria</u> into three parts, one of which kept the original name: <ol> <li><u>Yttria</u> (with a colorless salt and colorless oxide), <li><u>Erbia</u> (yellow oxide, colorless salt), and <li><u>Terbia</u> (rose oxide, red salt). <br>(Later Erbia and Terbia were interchanged). </ol> He published the results of his research in an annex dated July 1843 to the German translation of his paper on the metals he found in Cerium: &quot;Ueber die das Cerium begleitenden neuen Metalle Lanthanium und Didymium, so wie &uuml;ber die mit der Yttererde vorkommenden neuen Metalle Erbium und Terbium&quot; (On the new metals Lanthanum and Didymium, accompanying Cerium, and on the metals Erbium and Terbium occuring with yttria) <a href="javascript:void(0);" onmouseover="return overlib('<i>Annalen der Physik</i> N.F. 60 (1843), pp. 297-315.');" onmouseout="return nd();">(note)</a>: <p> <a href="javascript:void(0);" onmouseover="return overlib('<i>Annalen der Physik</i> N.F. 60 (1843), p. 312.');" onmouseout="return nd();"> <img src="images/naming/Y_Er_Tb.jpg" alt="" width="401" height="91" border="0"> </a> <p> <a href="javascript:void(0);" onmouseover="return overlib('Yttrium.<p><i>Source: German Wikipedia, original upload 2006 by Tomihahndorf.<br>This file is licensed under the Creative Commons Attribution ShareAlike 3.0 License.</i>');" onmouseout="return nd();"> <img src="images/elements/Yttrium_1.jpg" alt="" width="384" height="500" border="0" align="right"> </a> In more than a century of research, ten new elements were found in Gadolin's <u>yttria</u> (see table above). To commemorate Johan Gadolin, the mineral was renamed by Martin Klaproth into <u>gadolinite</u>. <p> Until the 1920s the chemical symbol <b>Yt</b> was used <a href="http://www.iupac.org/reports/1998/7001coplen/" target="_blank" onmouseover="return overlib('History of the Recommended Atomic-Weight Values from 1882 to 1997: A Comparison of Differences from Current Values to the Estimated Uncertainties of Earlier Values (Technical Report).<br><i>Click here for the on-line PDF file.<br>(Offsite: page opens in another window)</i>');" onmouseout="return nd();">(note)</a>. <p> <div class="chemtit">Chemistianity 1873</div> <div class="sellars"> LAYAN<br> YTTRIUM, a metal of great scarceness,<br> Is known only in blackish gray powder;<br> Its Oxide (<span class="dblsp">Yttria</span>) is yellowish white<br> In colour. Yttrium never yields a Spectrum.<br> Yttria is found in <b>Yttrotantalite,</b><br> In <b>Orthite,</b> (each extremely rare min'rals),<br> And <b>Ytterbite</b> from Ytterby, Sweden.<br> By ignition you can obtain Yttrium<br> From Yttrium Chloride and Potassium. </div> <div align="right"><a href="chemistianity.php" onMouseOver="return overlib(INARRAY,Sellars,WIDTH,200);" onMouseOut="return nd();">J. Carrington Sellars, <i>Chemistianity</i>, 1873</a>, p. 130-131</div> <br clear="all"> <div class="titel">Ytterby</div> <p> <div align="center"><img src="Ytterby/images/11_20090721_IMG_0022P_kl.jpg" alt="" width="400" height="300" border="0"><br><i>Peter van der Krogt in Ytterby, Summer 2009. <a href="Ytterby/index.html" target="_blank"><br> <img src="Ytterby/thumbs/tn_05_20090721_IMG_0014P.jpg" alt="" width="120" height="90" border="0"> <img src="Ytterby/thumbs/tn_02_20090721_IMG_0017P.jpg" alt="" width="120" height="91" border="0"> <img src="Ytterby/thumbs/tn_07_20090721_IMG_0009P.jpg" alt="" width="120" height="91" border="0"> <img src="Ytterby/thumbs/tn_11_20090721_IMG_0022P.jpg" alt="" width="120" height="91" border="0"> <br><b>Click here</b></a> for more photos</i><br> </div> Ytterby, a village in Sweden on the island of Resar&ouml;, close to Vaxholm (east of Stockholm) is a deposit of many unusual minerals, containing rare earth and other elements. <p> A Chronological list of discovery of the rare earths and their names and information and illustrations of Ytterby's quarry and a location map is on the <a href="rareearths.php">Rare Earths page</a>. <p> <div class="titel">Further reading</div> <ul> <li>Mary Elvira Weeks, <i>Discovery of the Elements</i>, comp. rev. by Henry M. Leicester (Easton, Pa.: Journal of Chemical Education, 1968), pp. 667-699. <li>Seltene Erden. <i>Gmelins Handbuch der anorganische Chemie</i>, 8. Aufl.; System-Nummer 39 (1938). <li>Lauri Niinist&ouml;, &quot;Discovery and Separation of Rare Earths&quot;. In <i>Rare Earths</i>, ed. Regino S&aacute;ez Puche &amp; Paul A. Caro, 25-42. Madrid: Editorial Complutense, 1997. <li>Peter B. Dean, and Kirsti I. Dean, &quot;Sir Johan Gadolin of Turku: The Grandfather of Gadolinium.&quot; <a href="http://homepage.mac.com/dtrapp/people/JGadolin.pdf" target="_blank" onmouseover="return overlib(INARRAY,PDF,WIDTH,200);" onmouseout="return nd();">(on-line PDF file)</a>. </ul> <hr> <table width="100%"><tr> <td width="33%" align="left"> <a href="sources.php"><b>Sources</b></a> </td><td width="34%" align="center"> <a href="persons.php"><b>Index of Persons</b></a> </td><td width="33%" align="right"> <a href="didnot.php"><b>Index of Alleged Elements</b></a> </td></tr></table> </td> </tr> </table> </BODY> </HTML>

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