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class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Terrestrial alteration of a meteorite</div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">Not to be confused with <a href="/wiki/Space_weathering" title="Space weathering">Space weathering</a>.</div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Willamette_Meteorite,_AMNH,_New_York_Times,_1911.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/55/Willamette_Meteorite%2C_AMNH%2C_New_York_Times%2C_1911.JPG/220px-Willamette_Meteorite%2C_AMNH%2C_New_York_Times%2C_1911.JPG" decoding="async" width="220" height="166" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/55/Willamette_Meteorite%2C_AMNH%2C_New_York_Times%2C_1911.JPG/330px-Willamette_Meteorite%2C_AMNH%2C_New_York_Times%2C_1911.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/55/Willamette_Meteorite%2C_AMNH%2C_New_York_Times%2C_1911.JPG/440px-Willamette_Meteorite%2C_AMNH%2C_New_York_Times%2C_1911.JPG 2x" data-file-width="800" data-file-height="602" /></a><figcaption>Two children are sitting within the corrosion grooves of the <a href="/wiki/Willamette_meteorite" class="mw-redirect" title="Willamette meteorite">Willamette meteorite</a>. Considerable mass has been lost to terrestrial weathering.</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:M%C3%A9t%C3%A9orite_Sikhote-Alin_(Russie)_1.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fb/M%C3%A9t%C3%A9orite_Sikhote-Alin_%28Russie%29_1.JPG/220px-M%C3%A9t%C3%A9orite_Sikhote-Alin_%28Russie%29_1.JPG" decoding="async" width="220" height="145" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fb/M%C3%A9t%C3%A9orite_Sikhote-Alin_%28Russie%29_1.JPG/330px-M%C3%A9t%C3%A9orite_Sikhote-Alin_%28Russie%29_1.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fb/M%C3%A9t%C3%A9orite_Sikhote-Alin_%28Russie%29_1.JPG/440px-M%C3%A9t%C3%A9orite_Sikhote-Alin_%28Russie%29_1.JPG 2x" data-file-width="3812" data-file-height="2514" /></a><figcaption>A <a href="/wiki/Sikhote-Alin_meteorite" title="Sikhote-Alin meteorite">Sikhote-Alin meteorite</a> with visible <a href="/wiki/Rust" title="Rust">rust</a>.</figcaption></figure> <p><b>Meteorite weathering</b> is the <a href="/wiki/Weathering" title="Weathering">terrestrial alteration</a> of a <a href="/wiki/Meteorite" title="Meteorite">meteorite</a>. Most meteorites date from the oldest times in the <a href="/wiki/Solar_System" title="Solar System">Solar System</a> and are by far the oldest material available on our planet. Despite their age, they are vulnerable to the terrestrial environment. <a href="/wiki/Water" title="Water">Water</a>, <a href="/wiki/Chlorine" title="Chlorine">chlorine</a> and <a href="/wiki/Oxygen" title="Oxygen">oxygen</a> attack meteorites as soon as they reach the ground. </p> <div class="mw-heading mw-heading2"><h2 id="Weathering_scales">Weathering scales</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Meteorite_weathering&action=edit&section=1" title="Edit section: Weathering scales"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In order to quantify the degree of alteration that a meteorite experienced, several qualitative weathering indices have been applied to antarctic and desert samples.<sup id="cite_ref-weatheringofchondritic_1-0" class="reference"><a href="#cite_note-weatheringofchondritic-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>The most known weathering scale is based upon the effects seen in polished <a href="/wiki/Thin_section" title="Thin section">thin sections</a> of chondritic meteorites and it ranges from W0 (pristine) to W6 (heavy alteration). It was proposed by Jull A. J. T. et al.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> (1991) and updated by Wlotzka<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup>(1993) and Al-Kathiri et al.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup>(2005). </p> <ul><li><span class="anchor" id="W0"></span>W0: no visible <a href="/wiki/Oxidation" class="mw-redirect" title="Oxidation">oxidation</a> of metal or <a href="/wiki/Troilite" title="Troilite">troilite</a>, but may be noticeable in transmitted light a limonitic staining. Usually recently <a href="/wiki/Meteorite_falls" class="mw-redirect" title="Meteorite falls">fallen meteorites</a> are of this grade, although some are already W1.</li> <li><span class="anchor" id="W1"></span>W1: small oxide rims around metal and troilite, small oxide veins.</li> <li><span class="anchor" id="W2"></span>W2: moderate oxidation of metal (about 20-60% replaced).</li> <li><span class="anchor" id="W3"></span>W3: heavy oxidation of metal and troilite (60-95% replaced).</li> <li><span class="anchor" id="W4"></span>W4: complete oxidation of metal and troilite (>95% replaced), but no alteration of silicates.</li> <li><span class="anchor" id="W5"></span>W5: beginning alteration of mafic silicates, mainly along cracks.</li> <li><span class="anchor" id="W6"></span>W6: heavy replacement of silicates by clay minerals and oxides.</li></ul> <p>The Meteorite Working Group at the <a href="/wiki/Johnson_Space_Center" title="Johnson Space Center">Johnson Space Center</a> uses weathering categories <i>A</i> <i>B</i>, <i>C</i> and <i>E</i> to denote the alteration of <a href="/wiki/Antarctic_meteorites" class="mw-redirect" title="Antarctic meteorites">antarctic meteorites</a>.<sup id="cite_ref-weatheringofchondritic_1-1" class="reference"><a href="#cite_note-weatheringofchondritic-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Their official definitions are:<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p> <ul><li>A: Minor rustiness; rust haloes on metal particles and rust stains along fractures are minor.</li> <li>B: Moderate rustiness; large rust haloes occur on metal particles and rust stains on internal fractures are extensive.</li> <li>C: Severe rustiness; metal particles have been mostly stained by rust throughout.</li> <li>E: Evaporite minerals visible to the naked eye.</li></ul> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Meteorite_weathering&action=edit&section=2" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Glossary_of_meteoritics" title="Glossary of meteoritics">Glossary of meteoritics</a></li> <li><a href="/wiki/Meteorite_classification" title="Meteorite classification">Meteorite classification</a></li> <li><a href="/wiki/Weathering" title="Weathering">Weathering</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Meteorite_weathering&action=edit&section=3" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-weatheringofchondritic-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-weatheringofchondritic_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-weatheringofchondritic_1-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">P. A. Bland, M. E. Zolensky, G. K. Benedix, M. A. Sephton. <i>"<a rel="nofollow" class="external text" href="http://www.lpi.usra.edu/books/MESSII/9041.pdf">Weathering of Chondritic Meteorites</a>"</i></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFJullWlotzkaDonahue1991" class="citation journal cs1">Jull, A. J. T.; Wlotzka, F.; Donahue, D. J. (1991). "Terrestrial Ages and Petrologic Description of Roosevelt County Meteorites". <i>Abstracts of the Lunar and Planetary Science Conference</i>. <b>22</b>: 667. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/1991LPI....22..667J">1991LPI....22..667J</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Abstracts+of+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Terrestrial+Ages+and+Petrologic+Description+of+Roosevelt+County+Meteorites&rft.volume=22&rft.pages=667&rft.date=1991&rft_id=info%3Abibcode%2F1991LPI....22..667J&rft.aulast=Jull&rft.aufirst=A.+J.+T.&rft.au=Wlotzka%2C+F.&rft.au=Donahue%2C+D.+J.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMeteorite+weathering" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFWlotzka1993" class="citation journal cs1">Wlotzka, F. (1993). "A Weathering Scale for the Ordinary Chondrites". <i>Meteoritics</i>. <b>28</b>: 460. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/1993Metic..28Q.460W">1993Metic..28Q.460W</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Meteoritics&rft.atitle=A+Weathering+Scale+for+the+Ordinary+Chondrites&rft.volume=28&rft.pages=460&rft.date=1993&rft_id=info%3Abibcode%2F1993Metic..28Q.460W&rft.aulast=Wlotzka&rft.aufirst=F.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMeteorite+weathering" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFWlotzkaJullDonahue1995" class="citation journal cs1">Wlotzka, F.; Jull, A. 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"Carbon-14 Terrestrial Ages of Meteorites from Acfer, Algeria". <i>Workshop on Meteorites from Cold and Hot Deserts</i>: 72. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/1995mfch.work...72W">1995mfch.work...72W</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Workshop+on+Meteorites+from+Cold+and+Hot+Deserts&rft.atitle=Carbon-14+Terrestrial+Ages+of+Meteorites+from+Acfer%2C+Algeria&rft.pages=72&rft.date=1995&rft_id=info%3Abibcode%2F1995mfch.work...72W&rft.aulast=Wlotzka&rft.aufirst=F.&rft.au=Jull%2C+A.+J.+T.&rft.au=Donahue%2C+D.+J.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMeteorite+weathering" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFAl-KathiriHofmannJullGnos2005" class="citation journal cs1">Al-Kathiri, A.; Hofmann, B. 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title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Weathering+of+meteorites+from+Oman%3A+Correlation+of+chemical+and+mineralogical+weathering+proxies+with14C+terrestrial+ages+and+the+influence+of+soil+chemistry&rft.volume=40&rft.issue=8&rft.pages=1215-1239&rft.date=2005&rft_id=info%3Adoi%2F10.1111%2Fj.1945-5100.2005.tb00185.x&rft_id=info%3Abibcode%2F2005M%26PS...40.1215A&rft.aulast=Al-Kathiri&rft.aufirst=A.&rft.au=Hofmann%2C+B.+A.&rft.au=Jull%2C+A.+J.+T.&rft.au=Gnos%2C+E.&rft_id=https%3A%2F%2Fdoi.org%2F10.1111%252Fj.1945-5100.2005.tb00185.x&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMeteorite+weathering" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" 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0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="By_type,_class,clan,_group_and_grouplet" scope="row" class="navbox-group" style="width:1%">By <a href="/wiki/Category:Meteorite_types" title="Category:Meteorite types">type</a>, <a href="/wiki/Category:Meteorite_classes" title="Category:Meteorite classes">class</a>,<br /><a href="/wiki/Category:Meteorite_clans" title="Category:Meteorite clans">clan</a>, <a href="/wiki/Category:Meteorite_groups" title="Category:Meteorite groups">group</a><br /> and <a href="/wiki/Category:Meteorite_grouplets" title="Category:Meteorite grouplets">grouplet</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Chondrite" title="Chondrite">Chondrite</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Carbonaceous_chondrite" title="Carbonaceous chondrite">Carbonaceous</a> <ul><li>CB</li> <li>CH</li> <li><a href="/wiki/CI_chondrite" title="CI chondrite">CI</a></li> <li>CK</li> <li>CM</li> <li>CO</li> <li>CR</li> <li>CV</li> <li>C ungrouped</li></ul></li> <li><a href="/wiki/Enstatite_chondrite" title="Enstatite chondrite">Enstatite</a> <ul><li>EH</li> <li>EL</li></ul></li> <li><a href="/wiki/Chondrite#Kakangari_chondrites" title="Chondrite">Kakangari</a></li> <li><a href="/wiki/Ordinary_chondrite" title="Ordinary chondrite">Ordinary</a> <ul><li><a href="/wiki/H_chondrite" title="H chondrite">H</a></li> <li><a href="/wiki/L_chondrite" title="L chondrite">L</a></li> <li><a href="/wiki/LL_chondrite" title="LL chondrite">LL</a></li></ul></li> <li><a href="/wiki/Chondrite#Rumuruti_chondrites" title="Chondrite">Rumuruti</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Achondrite" title="Achondrite">Achondrite</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Primitive_achondrite" title="Primitive achondrite">Primitive</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Acapulcoite" title="Acapulcoite">Acapulcoite</a></li> <li><a href="/wiki/Brachinite" title="Brachinite">Brachinite</a></li> <li><a href="/wiki/IAB_meteorites" class="mw-redirect" title="IAB meteorites">IAB</a></li> <li><a href="/wiki/IIICD_meteorite" title="IIICD meteorite">IIICD</a></li> <li><a href="/wiki/Lodranite" title="Lodranite">Lodranite</a></li> <li><a href="/wiki/Ureilite" title="Ureilite">Ureilite</a></li> <li><a href="/wiki/Winonaite" title="Winonaite">Winonaite</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Asteroidal_achondrite" class="mw-redirect" title="Asteroidal achondrite">Asteroidal</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Angrite" title="Angrite">Angrite</a></li> <li><a href="/wiki/Aubrite" title="Aubrite">Aubrite</a></li> <li><a href="/wiki/HED_meteorite" title="HED meteorite">HED</a> <ul><li><a href="/wiki/Diogenite" title="Diogenite">Diogenite</a></li> <li><a href="/wiki/Eucrite" title="Eucrite">Eucrite</a></li> <li><a href="/wiki/Howardite" title="Howardite">Howardite</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Lunar_meteorite" title="Lunar meteorite">Lunar</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Impact_breccia" class="mw-redirect" title="Impact breccia">Impact breccia</a></li> <li><a href="/wiki/Mare_basalts" class="mw-redirect" title="Mare basalts">Mare basalts</a></li> <li><a href="/wiki/List_of_lunar_meteorites" title="List of lunar meteorites">List</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Martian_meteorite" title="Martian meteorite">Martian</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Northwest_Africa_7034" title="Northwest Africa 7034">Basaltic Breccia</a> <ul><li><a href="/wiki/Northwest_Africa_7034" title="Northwest Africa 7034">NWA 7034</a></li></ul></li> <li><a href="/wiki/Chassignites" class="mw-redirect" title="Chassignites">Chassignites</a></li> <li><a href="/wiki/Kaidun_meteorite" title="Kaidun meteorite">Kaidun</a></li> <li><a href="/wiki/Nakhlite" title="Nakhlite">Nakhlites</a></li> <li><a href="/wiki/Orthopyroxenite" title="Orthopyroxenite">Orthopyroxenite</a> <ul><li><a href="/wiki/Allan_Hills_84001" title="Allan Hills 84001">ALH84001</a></li></ul></li> <li><a href="/wiki/Martian_meteorite#Shergottites" title="Martian meteorite">Shergottites</a></li> <li><a href="/wiki/List_of_Martian_meteorites" title="List of Martian meteorites">Martian meteorites list</a></li> <li><a href="/wiki/List_of_meteorites_on_Mars" class="mw-redirect" title="List of meteorites on Mars">Meteorites on Mars list</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Iron_meteorite" title="Iron meteorite">Iron</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>IC</li> <li><a href="/wiki/IIAB_meteorites" title="IIAB meteorites">IIAB</a></li> <li>IIC</li> <li>IID</li> <li><a href="/wiki/IIE_iron_meteorite" title="IIE iron meteorite">IIE</a></li> <li><a href="/wiki/IIG_meteorite" title="IIG meteorite">IIG</a></li> <li>IIIAB</li> <li>IIIE</li> <li>IIIF</li> <li>IVA</li> <li><a href="/wiki/IVB_meteorite" title="IVB meteorite">IVB</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Stony-iron_meteorite" title="Stony-iron meteorite">Stony-iron</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Mesosiderite" title="Mesosiderite">Mesosiderite</a></li> <li><a href="/wiki/Pallasite" title="Pallasite">Pallasite</a> <ul><li><a href="/wiki/Pallasite_main_group" title="Pallasite main group">Main group</a></li> <li><a href="/wiki/Eagle_Station_group" title="Eagle Station group">Eagle Station</a></li> <li><a href="/wiki/Pyroxene_pallasite_grouplet" title="Pyroxene pallasite grouplet">Pyroxene</a></li></ul></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Structural</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ataxite" title="Ataxite">Ataxite</a></li> <li><a href="/wiki/Hexahedrite" title="Hexahedrite">Hexahedrite</a></li> <li><a href="/wiki/Octahedrite" title="Octahedrite">Octahedrite</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Obsolete terms</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Amphoterite" title="Amphoterite">Amphoterite</a></li> <li><a href="/wiki/Nonmagmatic_meteorite" title="Nonmagmatic meteorite">Nonmagmatic meteorite</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Mineralogy" title="Mineralogy">Mineralogy</a> <br />and <a href="/wiki/Petrology" title="Petrology">petrology</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>Characteristics <ul><li><a href="/wiki/Meteorite_shock_stage" title="Meteorite shock stage">shock</a></li> <li><a href="/wiki/Total_known_weight" title="Total known weight">TKW</a></li> <li><a class="mw-selflink selflink">weathering</a></li></ul></li> <li>Grains <ul><li><a href="/wiki/Chondrule" title="Chondrule">chondrule</a></li> <li><a href="/wiki/Presolar_grains" title="Presolar grains">presolar</a></li></ul></li> <li><a href="/wiki/List_of_meteorite_minerals" title="List of meteorite minerals">Minerals</a> <ul><li><a href="/wiki/Calcium%E2%80%93aluminium-rich_inclusion" title="Calcium–aluminium-rich inclusion">Ca–Al-rich inclusion</a></li> <li><a href="/wiki/Extraterrestrial_materials" title="Extraterrestrial materials">extraterrestrial materials</a></li> <li><a href="/wiki/Meteoric_iron" title="Meteoric iron">meteoric iron</a></li></ul></li> <li>Patterns <ul><li><a href="/wiki/Neumann_lines" title="Neumann lines">Neumann lines</a></li> <li><a href="/wiki/Widmanst%C3%A4tten_pattern" title="Widmanstätten pattern">Widmanstätten</a></li></ul></li> <li><a href="/wiki/CI1_fossils" title="CI1 fossils">CI1 fossils</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Lists</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>Meteorites by <ul><li><a href="/wiki/Category:Meteorites_by_find_location" title="Category:Meteorites by find location">find location</a></li> <li><a href="/wiki/Category:Meteorites_by_type" title="Category:Meteorites by type">type</a></li></ul></li> <li><a href="/wiki/Category:Meteorite_prizes" title="Category:Meteorite prizes">Awards</a></li> <li><a href="/wiki/Category:Meteoritics_publications" title="Category:Meteoritics publications">Journals</a></li> <li><a href="/wiki/Category:Meteorite_organizations" title="Category:Meteorite organizations">Organizations</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li><i>See also:</i> <a href="/wiki/Asteroid" title="Asteroid">Asteroid</a></li> <li><a href="/wiki/Atmospheric_entry" title="Atmospheric entry">Atmospheric entry</a></li> <li><a href="/wiki/Comet" title="Comet">Comet</a></li> <li><a href="/wiki/Impact_event" title="Impact event">Impact event</a></li> <li><a href="/wiki/Meteor" class="mw-redirect" title="Meteor">Meteor</a> <ul><li><a href="/wiki/Meteor_shower" title="Meteor shower">shower</a></li></ul></li> <li><a href="/wiki/Meteoroid" title="Meteoroid">Meteoroid</a></li> <li><a href="/wiki/Near-Earth_object" title="Near-Earth object">Near-Earth object</a></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1&useformat=desktop" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Meteorite_weathering&oldid=1237062621">https://en.wikipedia.org/w/index.php?title=Meteorite_weathering&oldid=1237062621</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:Meteorite_mineralogy_and_petrology" title="Category:Meteorite mineralogy and petrology">Meteorite mineralogy and petrology</a></li><li><a href="/wiki/Category:Weathering" title="Category:Weathering">Weathering</a></li></ul></div><div id="mw-hidden-catlinks" 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