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id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Início</div> </a> </li> <li id="toc-Referências" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Referências"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Referências</span> </div> </a> <ul id="toc-Referências-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Bibliografia" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Bibliografia"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Bibliografia</span> </div> </a> <ul id="toc-Bibliografia-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Conteúdo" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Alternar o índice" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Alternar o índice</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Zirconita</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Ir para um artigo noutra língua. Disponível em 61 línguas" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-61" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">61 línguas</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Sirkoon" title="Sirkoon — africanês" lang="af" hreflang="af" data-title="Sirkoon" data-language-autonym="Afrikaans" data-language-local-name="africanês" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B2%D8%B1%D9%83%D9%88%D9%86" title="زركون — árabe" lang="ar" hreflang="ar" data-title="زركون" data-language-autonym="العربية" data-language-local-name="árabe" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%A6%D1%8B%D1%80%D0%BA%D0%BE%D0%BD" title="Цыркон — bielorrusso" lang="be" hreflang="be" data-title="Цыркон" data-language-autonym="Беларуская" data-language-local-name="bielorrusso" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%A6%D1%8B%D1%80%D0%BA%D0%BE%D0%BD_(%D0%BC%D1%96%D0%BD%D1%8D%D1%80%D0%B0%D0%BB)" title="Цыркон (мінэрал) — Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Цыркон (мінэрал)" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A6%D0%B8%D1%80%D0%BA%D0%BE%D0%BD" title="Циркон — búlgaro" lang="bg" hreflang="bg" data-title="Циркон" data-language-autonym="Български" data-language-local-name="búlgaro" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%9C%E0%A6%BF%E0%A6%B0%E0%A6%95%E0%A6%A8" title="জিরকন — bengalês" lang="bn" hreflang="bn" data-title="জিরকন" data-language-autonym="বাংলা" data-language-local-name="bengalês" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Zirc%C3%B3" title="Zircó — catalão" lang="ca" hreflang="ca" data-title="Zircó" data-language-autonym="Català" data-language-local-name="catalão" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Zirkon" title="Zirkon — checo" lang="cs" hreflang="cs" data-title="Zirkon" data-language-autonym="Čeština" data-language-local-name="checo" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Zirkon" title="Zirkon — dinamarquês" lang="da" hreflang="da" data-title="Zirkon" data-language-autonym="Dansk" data-language-local-name="dinamarquês" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de badge-Q17437796 badge-featuredarticle mw-list-item" title="artigo destacado"><a href="https://de.wikipedia.org/wiki/Zirkon" title="Zirkon — alemão" lang="de" hreflang="de" data-title="Zirkon" data-language-autonym="Deutsch" data-language-local-name="alemão" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%96%CE%B9%CF%81%CE%BA%CF%8C%CE%BD%CE%B9%CE%BF_(%CE%BF%CF%81%CF%85%CE%BA%CF%84%CF%8C)" title="Ζιρκόνιο (ορυκτό) — grego" lang="el" hreflang="el" data-title="Ζιρκόνιο (ορυκτό)" data-language-autonym="Ελληνικά" data-language-local-name="grego" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Zircon" title="Zircon — inglês" lang="en" hreflang="en" data-title="Zircon" data-language-autonym="English" data-language-local-name="inglês" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Zirkono" title="Zirkono — esperanto" lang="eo" hreflang="eo" data-title="Zirkono" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Zirc%C3%B3n" title="Zircón — espanhol" lang="es" hreflang="es" data-title="Zircón" data-language-autonym="Español" data-language-local-name="espanhol" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Tsirkoon" title="Tsirkoon — estónio" lang="et" hreflang="et" data-title="Tsirkoon" data-language-autonym="Eesti" data-language-local-name="estónio" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Zirkoi" title="Zirkoi — basco" lang="eu" hreflang="eu" data-title="Zirkoi" data-language-autonym="Euskara" data-language-local-name="basco" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B2%DB%8C%D8%B1%DA%A9%D9%86" title="زیرکن — persa" lang="fa" hreflang="fa" data-title="زیرکن" data-language-autonym="فارسی" data-language-local-name="persa" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Zirkoni" title="Zirkoni — finlandês" lang="fi" hreflang="fi" data-title="Zirkoni" data-language-autonym="Suomi" data-language-local-name="finlandês" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Zircon" title="Zircon — francês" lang="fr" hreflang="fr" data-title="Zircon" data-language-autonym="Français" data-language-local-name="francês" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Siorc%C3%B3n" title="Siorcón — irlandês" lang="ga" hreflang="ga" data-title="Siorcón" data-language-autonym="Gaeilge" data-language-local-name="irlandês" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Circ%C3%B3n" title="Circón — galego" lang="gl" hreflang="gl" data-title="Circón" data-language-autonym="Galego" data-language-local-name="galego" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%96%D7%99%D7%A8%D7%A7%D7%95%D7%9F" title="זירקון — hebraico" lang="he" hreflang="he" data-title="זירקון" data-language-autonym="עברית" data-language-local-name="hebraico" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Cirkon" title="Cirkon — croata" lang="hr" hreflang="hr" data-title="Cirkon" data-language-autonym="Hrvatski" data-language-local-name="croata" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Cirkon" title="Cirkon — húngaro" lang="hu" hreflang="hu" data-title="Cirkon" data-language-autonym="Magyar" data-language-local-name="húngaro" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%91%D5%AB%D6%80%D5%AF%D5%B8%D5%B6" title="Ցիրկոն — arménio" lang="hy" hreflang="hy" data-title="Ցիրկոն" data-language-autonym="Հայերեն" data-language-local-name="arménio" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Yakut_(batu)" title="Yakut (batu) — indonésio" lang="id" hreflang="id" data-title="Yakut (batu)" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonésio" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Zircone" title="Zircone — italiano" lang="it" hreflang="it" data-title="Zircone" data-language-autonym="Italiano" data-language-local-name="italiano" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%B8%E3%83%AB%E3%82%B3%E3%83%B3" title="ジルコン — japonês" lang="ja" hreflang="ja" data-title="ジルコン" data-language-autonym="日本語" data-language-local-name="japonês" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%AA%E1%83%98%E1%83%A0%E1%83%99%E1%83%9D%E1%83%9C%E1%83%98" title="ცირკონი — georgiano" lang="ka" hreflang="ka" data-title="ცირკონი" data-language-autonym="ქართული" data-language-local-name="georgiano" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%A6%D0%B8%D1%80%D0%BA%D0%BE%D0%BD" title="Циркон — cazaque" lang="kk" hreflang="kk" data-title="Циркон" data-language-autonym="Қазақша" data-language-local-name="cazaque" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%97%E0%B3%8B%E0%B2%AE%E0%B3%87%E0%B2%A6%E0%B2%95" title="ಗೋಮೇದಕ — canarim" lang="kn" hreflang="kn" data-title="ಗೋಮೇದಕ" data-language-autonym="ಕನ್ನಡ" data-language-local-name="canarim" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%A7%80%EB%A5%B4%EC%BD%98" title="지르콘 — coreano" lang="ko" hreflang="ko" data-title="지르콘" data-language-autonym="한국어" data-language-local-name="coreano" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%A6%D0%B8%D1%80%D0%BA%D0%BE%D0%BD" title="Циркон — quirguiz" lang="ky" hreflang="ky" data-title="Циркон" data-language-autonym="Кыргызча" data-language-local-name="quirguiz" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wikipedia.org/wiki/Zirkoon" title="Zirkoon — limburguês" lang="li" hreflang="li" data-title="Zirkoon" data-language-autonym="Limburgs" data-language-local-name="limburguês" class="interlanguage-link-target"><span>Limburgs</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Cirkonas" title="Cirkonas — lituano" lang="lt" hreflang="lt" data-title="Cirkonas" data-language-autonym="Lietuvių" data-language-local-name="lituano" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Cirkons" title="Cirkons — letão" lang="lv" hreflang="lv" data-title="Cirkons" data-language-autonym="Latviešu" data-language-local-name="letão" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mg mw-list-item"><a href="https://mg.wikipedia.org/wiki/Zirk%C3%B4na" title="Zirkôna — malgaxe" lang="mg" hreflang="mg" data-title="Zirkôna" data-language-autonym="Malagasy" data-language-local-name="malgaxe" class="interlanguage-link-target"><span>Malagasy</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%82%E1%80%B1%E1%80%AB%E1%80%BA%E1%80%99%E1%80%AD%E1%80%90%E1%80%BA" title="ဂေါ်မိတ် — birmanês" lang="my" hreflang="my" data-title="ဂေါ်မိတ်" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="birmanês" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Zirkoon_(mineraal)" title="Zirkoon (mineraal) — neerlandês" lang="nl" hreflang="nl" data-title="Zirkoon (mineraal)" data-language-autonym="Nederlands" data-language-local-name="neerlandês" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Zirkon" title="Zirkon — norueguês nynorsk" lang="nn" hreflang="nn" data-title="Zirkon" data-language-autonym="Norsk nynorsk" data-language-local-name="norueguês nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Zirkon" title="Zirkon — norueguês bokmål" lang="nb" hreflang="nb" data-title="Zirkon" data-language-autonym="Norsk bokmål" data-language-local-name="norueguês bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Cyrkon_(minera%C5%82)" title="Cyrkon (minerał) — polaco" lang="pl" hreflang="pl" data-title="Cyrkon (minerał)" data-language-autonym="Polski" data-language-local-name="polaco" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D8%B2%D8%B1%D9%82%D9%88%D9%86" title="زرقون — Western Punjabi" lang="pnb" hreflang="pnb" data-title="زرقون" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Zircon" title="Zircon — romeno" lang="ro" hreflang="ro" data-title="Zircon" data-language-autonym="Română" data-language-local-name="romeno" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A6%D0%B8%D1%80%D0%BA%D0%BE%D0%BD" title="Циркон — russo" lang="ru" hreflang="ru" data-title="Циркон" data-language-autonym="Русский" data-language-local-name="russo" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/Zircon" title="Zircon — scots" lang="sco" hreflang="sco" data-title="Zircon" data-language-autonym="Scots" data-language-local-name="scots" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Cirkon" title="Cirkon — servo-croata" lang="sh" hreflang="sh" data-title="Cirkon" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="servo-croata" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B6%A2%E0%B7%8F%E0%B6%9C%E0%B7%94%E0%B6%B1%E0%B7%8A" title="ජාගුන් — cingalês" lang="si" hreflang="si" data-title="ජාගුන්" data-language-autonym="සිංහල" data-language-local-name="cingalês" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Zircon" title="Zircon — Simple English" lang="en-simple" hreflang="en-simple" data-title="Zircon" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Zirk%C3%B3n" title="Zirkón — eslovaco" lang="sk" hreflang="sk" data-title="Zirkón" data-language-autonym="Slovenčina" data-language-local-name="eslovaco" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Cirkon" title="Cirkon — esloveno" lang="sl" hreflang="sl" data-title="Cirkon" data-language-autonym="Slovenščina" data-language-local-name="esloveno" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A6%D0%B8%D1%80%D0%BA%D0%BE%D0%BD" title="Циркон — sérvio" lang="sr" hreflang="sr" data-title="Циркон" data-language-autonym="Српски / srpski" data-language-local-name="sérvio" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Zirkon" title="Zirkon — sueco" lang="sv" hreflang="sv" data-title="Zirkon" data-language-autonym="Svenska" data-language-local-name="sueco" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%80%E0%B8%9E%E0%B8%97%E0%B8%B2%E0%B8%A2" title="เพทาย — tailandês" lang="th" hreflang="th" data-title="เพทาย" data-language-autonym="ไทย" data-language-local-name="tailandês" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Zirkon" title="Zirkon — turco" lang="tr" hreflang="tr" data-title="Zirkon" data-language-autonym="Türkçe" data-language-local-name="turco" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A6%D0%B8%D1%80%D0%BA%D0%BE%D0%BD" title="Циркон — ucraniano" lang="uk" hreflang="uk" data-title="Циркон" data-language-autonym="Українська" data-language-local-name="ucraniano" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%B2%D8%B1%D9%82%D9%88%D9%86" title="زرقون — urdu" lang="ur" hreflang="ur" data-title="زرقون" data-language-autonym="اردو" data-language-local-name="urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Sirkon" title="Sirkon — usbeque" lang="uz" hreflang="uz" data-title="Sirkon" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="usbeque" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Zircon" title="Zircon — vietnamita" lang="vi" hreflang="vi" data-title="Zircon" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamita" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E9%94%86%E7%9F%B3" title="锆石 — wu" lang="wuu" hreflang="wuu" data-title="锆石" data-language-autonym="吴语" data-language-local-name="wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E9%8B%AF%E7%9F%B3" title="鋯石 — chinês" lang="zh" hreflang="zh" data-title="鋯石" data-language-autonym="中文" data-language-local-name="chinês" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q178928#sitelinks-wikipedia" title="Editar hiperligações interlínguas" class="wbc-editpage">Editar hiperligações</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Espaços nominais"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Zirconita" title="Ver a página de conteúdo [c]" accesskey="c"><span>Artigo</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Discuss%C3%A3o:Zirconita&action=edit&redlink=1" rel="discussion" class="new" title="Discussão sobre o conteúdo da página (página não existe) [t]" accesskey="t"><span>Discussão</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Mudar a variante da língua" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">português</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Vistas"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Zirconita"><span>Ler</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Zirconita&veaction=edit" title="Editar esta página [v]" accesskey="v"><span>Editar</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Zirconita&action=edit" title="Editar o código-fonte desta página [e]" accesskey="e"><span>Editar código-fonte</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Zirconita&action=history" title="Edições anteriores desta página. [h]" accesskey="h"><span>Ver histórico</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Ferramentas de página"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Ferramentas" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Ferramentas</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Ferramentas</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">mover para a barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">ocultar</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Mais opções" > <div class="vector-menu-heading"> Operações </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Zirconita"><span>Ler</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Zirconita&veaction=edit" title="Editar esta página [v]" accesskey="v"><span>Editar</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Zirconita&action=edit" title="Editar o código-fonte desta página [e]" accesskey="e"><span>Editar código-fonte</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Zirconita&action=history"><span>Ver histórico</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Geral </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Especial:P%C3%A1ginas_afluentes/Zirconita" title="Lista de todas as páginas que contêm hiperligações para esta [j]" accesskey="j"><span>Páginas afluentes</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Especial:Altera%C3%A7%C3%B5es_relacionadas/Zirconita" rel="nofollow" title="Mudanças recentes nas páginas para as quais esta contém hiperligações [k]" accesskey="k"><span>Alterações relacionadas</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Wikipedia:Carregar_ficheiro" title="Carregar ficheiros [u]" accesskey="u"><span>Carregar ficheiro</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Especial:P%C3%A1ginas_especiais" title="Lista de páginas especiais [q]" accesskey="q"><span>Páginas especiais</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Zirconita&oldid=68819405" title="Hiperligação permanente para esta revisão desta página"><span>Hiperligação permanente</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Zirconita&action=info" title="Mais informações sobre esta página"><span>Informações da página</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Especial:Citar&page=Zirconita&id=68819405&wpFormIdentifier=titleform" title="Informação sobre como citar esta página"><span>Citar esta página</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Especial:UrlShortener&url=https%3A%2F%2Fpt.wikipedia.org%2Fwiki%2FZirconita"><span>Obter URL encurtado</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Especial:QrCode&url=https%3A%2F%2Fpt.wikipedia.org%2Fwiki%2FZirconita"><span>Descarregar código QR</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Imprimir/exportar </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Especial:Livro&bookcmd=book_creator&referer=Zirconita"><span>Criar um livro</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Especial:DownloadAsPdf&page=Zirconita&action=show-download-screen"><span>Descarregar como PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Zirconita&printable=yes" title="Versão para impressão desta página [p]" accesskey="p"><span>Versão para impressão</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> Noutros projetos </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Category:Zircon" hreflang="en"><span>Wikimedia Commons</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q178928" title="Hiperligação para o elemento do repositório de dados [g]" accesskey="g"><span>Elemento Wikidata</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Ferramentas de página"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Aspeto"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Aspeto</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">mover para a barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">ocultar</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Origem: Wikipédia, a enciclopédia livre.</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="pt" dir="ltr"><table class="infobox infobox_v2" cellpadding="3" border="0" style="width: 20em; text-align: left; font-size: 88%;"> <tbody><tr> <th colspan="2" class="fn" style="background:#8BAFDA; text-align:center; font-size: 1.2em; line-height:1.1em; padding: 0.1em;"><span class="">Zirconita ou Zircão</span> </th></tr> <tr> <td colspan="2" style="text-align:center;"><div style="padding-bottom: 5px;"><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/Ficheiro:Zirc%C3%A3o.jpeg" class="mw-file-description" title="Zirconita"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/52/Zirc%C3%A3o.jpeg/250px-Zirc%C3%A3o.jpeg" decoding="async" width="250" height="206" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/52/Zirc%C3%A3o.jpeg/375px-Zirc%C3%A3o.jpeg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/52/Zirc%C3%A3o.jpeg/500px-Zirc%C3%A3o.jpeg 2x" data-file-width="513" data-file-height="422" /></a><figcaption>Zirconita</figcaption></figure></div>Cristal de zircão de <a href="/wiki/Tocantins" title="Tocantins">Tocantins</a>, <a href="/wiki/Brasil" title="Brasil">Brasil</a> (2x2 cm) </td></tr> <tr> <td scope="row" style="vertical-align: top; text-align: left; font-weight:bold;">Categoria </td> <td style="vertical-align: top; text-align: left;"><a href="/w/index.php?title=Ortossilicato&action=edit&redlink=1" class="new" title="Ortossilicato (página não existe)">Ortossilicato</a> <a href="/wiki/Mineral" title="Mineral">mineral</a> </td></tr> <tr> <td scope="row" style="vertical-align: top; text-align: left; font-weight:bold;"><a href="/wiki/Cor" title="Cor">Cor</a> </td> <td style="vertical-align: top; text-align: left;">Incolor;<br /> Amarelo;<br /> Marrom;<br /> Vermelho;<br /> Verde; <br /> Azul. </td></tr> <tr> <td scope="row" style="vertical-align: top; text-align: left; font-weight:bold;"><a href="/wiki/F%C3%B3rmula_qu%C3%ADmica" title="Fórmula química">Fórmula química</a> </td> <td style="vertical-align: top; text-align: left;">ZrSiO4 </td></tr> <tr> <th colspan="2" style="text-align:center; background:#8BAFDA;">Propriedades <a href="/wiki/Cristal" title="Cristal">cristalográficas</a> </th></tr> <tr> <td scope="row" style="vertical-align: top; text-align: left; font-weight:bold;"><a href="/wiki/Estrutura_cristalina" title="Estrutura cristalina">Sistema cristalino</a> </td> <td style="vertical-align: top; text-align: left;"><a href="/wiki/Tetragonal" class="mw-redirect" title="Tetragonal">Tetragonal</a> </td></tr> <tr> <td scope="row" style="vertical-align: top; text-align: left; font-weight:bold;"><a href="/wiki/H%C3%A1bito_cristalino" title="Hábito cristalino">Hábito cristalino</a> </td> <td style="vertical-align: top; text-align: left;">Prismas tetraédrico; tabular e fibroso </td></tr> <tr> <td scope="row" style="vertical-align: top; text-align: left; font-weight:bold;"><a href="/wiki/Macla" title="Macla">Macla</a> </td> <td style="vertical-align: top; text-align: left;">Jargão (cristal transparente e puro); jacinto (laranja ou castanho-avermelhado) </td></tr> <tr> <th colspan="2" style="text-align:center; background:#8BAFDA;">Propriedades físicas </th></tr> <tr> <td scope="row" style="vertical-align: top; text-align: left; font-weight:bold;"><a href="/wiki/Densidade" title="Densidade">Densidade</a> </td> <td style="vertical-align: top; text-align: left;">3,9 a 4,86 </td></tr> <tr> <td scope="row" style="vertical-align: top; text-align: left; font-weight:bold;"><a href="/wiki/Escala_de_Mohs" title="Escala de Mohs">Dureza</a> </td> <td style="vertical-align: top; text-align: left;">6,5 e 7,5 </td></tr> <tr> <td scope="row" style="vertical-align: top; text-align: left; font-weight:bold;"><a href="/wiki/Clivagem_(mineralogia)" title="Clivagem (mineralogia)">Clivagem</a> </td> <td style="vertical-align: top; text-align: left;">Pobre </td></tr> <tr> <td scope="row" style="vertical-align: top; text-align: left; font-weight:bold;">Tenacidade </td> <td style="vertical-align: top; text-align: left;">Frágil </td></tr> <tr> <td scope="row" style="vertical-align: top; text-align: left; font-weight:bold;"><a href="/wiki/Lustre_(mineralogia)" title="Lustre (mineralogia)">Brilho</a> </td> <td style="vertical-align: top; text-align: left;">Vítreo </td></tr> <tr> <td scope="row" style="vertical-align: top; text-align: left; font-weight:bold;">Referências </td> <td style="vertical-align: top; text-align: left;"><sup id="cite_ref-Ministério_de_Minas_e_Energia_1-0" class="reference"><a href="#cite_note-Ministério_de_Minas_e_Energia-1"><span>[</span>1<span>]</span></a></sup> </td></tr> </tbody></table> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Ficheiro:Zircon_gisements.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/16/Zircon_gisements.jpg/220px-Zircon_gisements.jpg" decoding="async" width="220" height="145" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/16/Zircon_gisements.jpg/330px-Zircon_gisements.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/16/Zircon_gisements.jpg/440px-Zircon_gisements.jpg 2x" data-file-width="2434" data-file-height="1605" /></a><figcaption>Mapa dos principais países produtores no mundo</figcaption></figure> <p><b>Zircão</b> ou <b>zirconita</b> (do <a href="/wiki/L%C3%ADngua" title="Língua">Persa</a>: <i>sarkun</i>, dourado) é um <a href="/wiki/Mineral" title="Mineral">mineral</a> pertencente ao grupo dos <a href="/wiki/Nesossilicato" class="mw-redirect" title="Nesossilicato">nesossilicatos</a>. Trata-se de um <a href="/wiki/Silicato" title="Silicato">silicato</a> de <a href="/wiki/Zirc%C3%B3nio" class="mw-redirect" title="Zircónio">zircónio</a> de fórmula química <a href="/wiki/Zirc%C3%B3nio" class="mw-redirect" title="Zircónio">Zr</a><a href="/wiki/Sil%C3%ADcio" title="Silício">Si</a><a href="/wiki/Oxig%C3%AAnio" class="mw-redirect" title="Oxigênio">O</a><sub>4</sub>. A <a href="/wiki/Estrutura_cristalina" title="Estrutura cristalina">estrutura cristalina</a> do zircão é tetragonal (classe cristalina: 4/m 2/m 2/m). A coloração natural do zircão varia desde incolor passando pelo amarelo dourado, vermelho, marrom, azul ou verde . Espécimes que exibem qualidades de gema são um substituto popular do <a href="/wiki/Diamante" title="Diamante">diamante</a> (porém a <a href="/wiki/Zirc%C3%B3nia_c%C3%BAbica" class="mw-redirect" title="Zircónia cúbica">zircónia cúbica</a> é uma substância artificial completamente diferente, com uma composição química diferente). </p><p>O nome zircão deriva da palavra árabe <i>zarqun</i>, ou seja, <a href="/wiki/Vermelho" title="Vermelho">vermelho</a>, ou da palavra persa <i>zargun</i>, que significa dourado. Estas palavras são corrompidas em "jargoon", um termo aplicado a cristais de zircão de cor clara. O zircão amarelo é chamado jacinto, palavra de origem indiana. Na Idade Média, todas as pedras amarelas de origem indiana oriental eram chamadas jacintos, mas hoje este termo se restringe ao zircão amarelo. No <a href="/wiki/Brasil" title="Brasil">Brasil</a>, encontra-se em depósitos da Mina de Pitinga, no <a href="/wiki/Amazonas" title="Amazonas">Amazonas</a> e de Tapira, Salitre e Catalão, em <a href="/wiki/Goi%C3%A1s" title="Goiás">Goiás</a>.<sup id="cite_ref-Ministério_de_Minas_e_Energia_1-1" class="reference"><a href="#cite_note-Ministério_de_Minas_e_Energia-1"><span>[</span>1<span>]</span></a></sup> </p><p>O zircão é um mineral notável, nem que seja apenas pela sua presença ubíqua na <a href="/wiki/Crosta_terrestre" title="Crosta terrestre">crosta terrestre</a>. Está presente em muitas <a href="/wiki/Rocha_%C3%ADgnea" title="Rocha ígnea">rochas ígneas</a> (como produto primário da cristalização), nas <a href="/wiki/Rochas_metam%C3%B3rficas" class="mw-redirect" title="Rochas metamórficas">rochas metamórficas</a> (como grãos recristalizados) e nas <a href="/wiki/Rochas_sedimentares" class="mw-redirect" title="Rochas sedimentares">rochas sedimentares</a> (como grãos detríticos). É raro encontrar cristais de zircão de grandes dimensões. Atualmente, o zircão é tido como o recurso mineral mais antigo da Terra, tendo seu mais antigo pedaço de cristal aproximadamente 4,38 mil milhões de anos. O seu tamanho médio no <a href="/wiki/Granito" title="Granito">granito</a> por exemplo, é de (100 a 300) µm, contudo é possível encontrar em rochas minerais com vários centímetros, especialmente em <a href="/wiki/Pegmatito" title="Pegmatito">pegmatitos</a>. </p><p>A ocorrência generalizada de zircão se tornou mais importante desde a descoberta da <a href="/wiki/Data%C3%A7%C3%A3o_radiom%C3%A9trica" title="Datação radiométrica">datação radiométrica</a>. Zircões contêm quantidades de <a href="/wiki/Ur%C3%A2nio" title="Urânio">urânio</a> e <a href="/wiki/T%C3%B3rio" title="Tório">tório</a> (a partir de 10 ppm até 5% do peso) e pode ser datado utilizando técnicas analíticas modernas. Uma vez que o zircão tem a capacidade de sobreviver a processos geológicos como a <a href="/wiki/Eros%C3%A3o" title="Erosão">erosão</a>, o transporte,e mesmo o alto grau de <a href="/wiki/Metamorfismo" title="Metamorfismo">metamorfismo</a>, ele é usados como indicador protolítico. Até agora, os mais antigos minerais encontrados são zircões do terreno Narryer <a href="/wiki/Gnaisse" title="Gnaisse">Gnaisse</a>, Yilgarn Craton e porção ocidental da Austrália, com uma idade de 4404 milhões de anos (4,404 Ga). Esta idade é interpretada como idade de cristalização. Esse zircão não é apenas o mais velho mineral na Terra, ele também mostra uma outra característica interessante: sua composição de isótopos de oxigênio é interpretada por alguns como indicação de que há mais de 4404 milhões de anos (4,404 Ga) já havia água na superfície da terra. Esta é uma interpretação espetacular que já foi publicada nas principais revistas científicas, mas é amplamente contestada. É mais provável que os isótopos de oxigênio e outros componentes (<a href="/wiki/Terra_rara" class="mw-redirect" title="Terra rara">terra rara</a>) simplesmente registrem alterações hidrotermais. O momento da alteração é incerto, mas isso nega a necessidade de antigos oceanos de água líquida. </p><p>Devido ao seu teor de urânio e tório, alguns cristais de zircão podem sofrer <a href="/w/index.php?title=Metamitiza%C3%A7%C3%A3o&action=edit&redlink=1" class="new" title="Metamitização (página não existe)">metamitização</a>. Isto explica as propriedades altamente variáveis do zircão. Comercialmente, zircão é extraído pelo metal zircônio, usado para isolamento e abrasão. Espécimes maiores são gemas apreciadas devido à sua alta <a href="/wiki/Refra%C3%A7%C3%A3o" title="Refração">refração</a> (de cerca de 1,95 - o diamante tem cerca de 2,4). A cor dos cristais de zircão que não têm qualidade de gema pode ser alterada por tratamento térmico. Dependendo da quantidade de calor aplicada zircão incolor, azul e amarelo-dourado pode ser feito.<sup id="cite_ref-Volumwe_53:_Zircon_2-0" class="reference"><a href="#cite_note-Volumwe_53:_Zircon-2"><span>[</span>2<span>]</span></a></sup><sup id="cite_ref-" class="reference"><a href="#cite_note-"><span>[</span>3<span>]</span></a></sup> </p> <h2 id="Referências" style="cursor: help;" title="Esta seção foi configurada para não ser editável diretamente. Edite a página toda ou a seção anterior em vez disso."><span id="Refer.C3.AAncias"></span>Referências</h2> <div class="reflist" style="list-style-type: decimal;"><div class="mw-references-wrap"><ol class="references"> <li id="cite_note-Ministério_de_Minas_e_Energia-1"><span class="mw-cite-backlink">↑ <sup><i><b><a href="#cite_ref-Ministério_de_Minas_e_Energia_1-0">a</a></b></i></sup> <sup><i><b><a href="#cite_ref-Ministério_de_Minas_e_Energia_1-1">b</a></b></i></sup></span> <span class="reference-text"><cite class="citation web">Emílio Lobato. <a rel="nofollow" class="external text" href="http://www.mme.gov.br/documents/1138775/1256650/P28_RT49_Perfil_da_Zirconita.pdf/194d2fc7-de3c-40d1-bd25-4a87be7d415a">«Perfil da zirconita»</a> <span style="font-size:85%;">(PDF)</span><span class="reference-accessdate">. Consultado em 18 de novembro de 2016</span></cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fpt.wikipedia.org%3AZirconita&rft.au=Em%C3lio+Lobato&rft.btitle=Perfil+da+zirconita&rft.genre=unknown&rft_id=http%3A%2F%2Fwww.mme.gov.br%2Fdocuments%2F1138775%2F1256650%2FP28_RT49_Perfil_da_Zirconita.pdf%2F194d2fc7-de3c-40d1-bd25-4a87be7d415a&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-Volumwe_53:_Zircon-2"><span class="mw-cite-backlink"><a href="#cite_ref-Volumwe_53:_Zircon_2-0">↑</a></span> <span class="reference-text"><cite class="citation web">Minsocam.org. <a rel="nofollow" class="external text" href="http://www.minsocam.org/MSA/RIM/Rim53.html">«Volume 53: Zircon»</a><span class="reference-accessdate">. Consultado em 18 de novembro de 2016</span></cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fpt.wikipedia.org%3AZirconita&rft.au=Minsocam.org&rft.btitle=Volume+53%3A+Zircon&rft.genre=unknown&rft_id=http%3A%2F%2Fwww.minsocam.org%2FMSA%2FRIM%2FRim53.html&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-0-3"><span class="mw-cite-backlink"><a href="#cite_ref-0_3-0">↑</a></span> <span class="reference-text"><cite class="citation web"><i>Department of Geoscience</i>. <a rel="nofollow" class="external text" href="http://geoscience.wisc.edu/geoscience/people/faculty/john-valley/zircons-are-forever/">«ZIRCONS ARE FOREVER (UPDATED 2005)»</a><span class="reference-accessdate">. Consultado em 18 de novembro de 2016</span></cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fpt.wikipedia.org%3AZirconita&rft.au=%27%27Department+of+Geoscience%27%27&rft.btitle=ZIRCONS+ARE+FOREVER+%28UPDATED+2005%29&rft.genre=unknown&rft_id=http%3A%2F%2Fgeoscience.wisc.edu%2Fgeoscience%2Fpeople%2Ffaculty%2Fjohn-valley%2Fzircons-are-forever%2F&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Bibliografia">Bibliografia</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Zirconita&veaction=edit&section=1" title="Editar secção: Bibliografia" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Zirconita&action=edit&section=1" title="Editar código-fonte da secção: Bibliografia"><span>editar código-fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>D. J. Cherniak and E. B. Watson (2000): Pb diffusion in zircon. <i>Chemical Geology</i> <b>172</b>, pp. 5-24.</li> <li>A. N. Halliday (1999): In the beginning... . <i>Nature</i> <b>409</b>, pp. 144-145.</li> <li>Hermann Köhler (1970): Die Änderung der Zirkonmorphologie mit dem Differentiationsgrad eines Granits. <i>Neues Jahrbuch Mineralogische Monatshefte</i> <b>9</b>, pp. 405 - 420.</li> <li>K. Mezger and E. J. Krogstad (1997): Interpretation of discordant U-Pb zircon ages: An evaluation. <i>Journal of metamorphic Geology</i> <b>15</b>, pp. 127-140.</li> <li>J. P. Pupin (1980): Zircon and Granite petrology. <i>Contributions to Mineralogie and Petrololgy</i> <b>73</b>, pp. 207-220.</li> <li>Gunnar Ries (2001): Zirkon als akzessorisches Mineral. <i>Aufschluss</i> <b>52</b>, pp. 381-383.</li> <li>P. Tondar (1991): <i>Zirkonmorphologie als Charakteristikum eines Gesteins.</i> Dissertation an der Ludwig-Maximilians-Universität München, 87 pp.</li> <li>G. Vavra (1990): On the kinematics of zircon growth and its petrogenetic significance: a cathodoluminescence study. <i>Contrib. Mineral. Petrol.</i> <b>106</b>, pp. 90-99.</li> <li>G. Vavra (1994): Systematics of internal zircon morphology in major Variscan granitoid types. <i>Contrib. Mineral. Petrol.</i> <b>117</b>, pp. 331-344.</li></ul>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Obtida de "<a dir="ltr" href="https://pt.wikipedia.org/w/index.php?title=Zirconita&oldid=68819405">https://pt.wikipedia.org/w/index.php?title=Zirconita&oldid=68819405</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Especial:Categorias" title="Especial:Categorias">Categorias</a>: <ul><li><a href="/wiki/Categoria:Minerais_de_zirc%C3%B4nio" title="Categoria:Minerais de zircônio">Minerais de zircônio</a></li><li><a href="/wiki/Categoria:Silicatos_e_germanatos" title="Categoria:Silicatos e germanatos">Silicatos e germanatos</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Categoria oculta: <ul><li><a href="/wiki/Categoria:!Artigos_destacados_na_Wikip%C3%A9dia_em_alem%C3%A3o" title="Categoria:!Artigos destacados na Wikipédia em alemão">!Artigos destacados na Wikipédia em alemão</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Esta página foi editada pela última vez às 03h04min de 15 de outubro de 2024.</li> <li id="footer-info-copyright">Este texto é disponibilizado nos termos da licença <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.pt">Atribuição-CompartilhaIgual 4.0 Internacional (CC BY-SA 4.0) da Creative Commons</a>; pode estar sujeito a condições adicionais. 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