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Nacrite — Wikipédia

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aria-controls="toc-Historique_de_la_description_et_appellations-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Afficher / masquer la sous-section Historique de la description et appellations</span> </button> <ul id="toc-Historique_de_la_description_et_appellations-sublist" class="vector-toc-list"> <li id="toc-Inventeur_et_étymologie" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Inventeur_et_étymologie"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>Inventeur et étymologie</span> </div> </a> <ul id="toc-Inventeur_et_étymologie-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Topotype" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Topotype"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2</span> <span>Topotype</span> </div> </a> <ul id="toc-Topotype-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Caractéristiques_physico-chimiques" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Caractéristiques_physico-chimiques"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Caractéristiques physico-chimiques</span> </div> </a> <button aria-controls="toc-Caractéristiques_physico-chimiques-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Afficher / masquer la sous-section Caractéristiques physico-chimiques</span> </button> <ul id="toc-Caractéristiques_physico-chimiques-sublist" class="vector-toc-list"> <li id="toc-Cristallochimie" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Cristallochimie"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Cristallochimie</span> </div> </a> <ul id="toc-Cristallochimie-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Cristallographie" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Cristallographie"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Cristallographie</span> </div> </a> <ul id="toc-Cristallographie-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Gîtes_et_gisements" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Gîtes_et_gisements"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Gîtes et gisements</span> </div> </a> <button aria-controls="toc-Gîtes_et_gisements-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Afficher / masquer la sous-section Gîtes et gisements</span> </button> <ul id="toc-Gîtes_et_gisements-sublist" class="vector-toc-list"> <li id="toc-Gîtologie_et_minéraux_associés" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Gîtologie_et_minéraux_associés"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Gîtologie et minéraux associés</span> </div> </a> <ul id="toc-Gîtologie_et_minéraux_associés-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Gisements_producteurs_de_spécimens_remarquables" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Gisements_producteurs_de_spécimens_remarquables"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Gisements producteurs de spécimens remarquables</span> </div> </a> <ul id="toc-Gisements_producteurs_de_spécimens_remarquables-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Notes_et_références" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Notes_et_références"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Notes et références</span> </div> </a> <ul id="toc-Notes_et_références-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Annexes" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Annexes"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Annexes</span> </div> </a> <button aria-controls="toc-Annexes-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Afficher / masquer la sous-section Annexes</span> </button> <ul id="toc-Annexes-sublist" class="vector-toc-list"> <li id="toc-Liens_externes" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Liens_externes"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.1</span> <span>Liens externes</span> </div> </a> <ul id="toc-Liens_externes-sublist" class="vector-toc-list"> </ul> </li> </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="Sommaire" 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="Basculer la table des matières" > <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">Basculer la table des matières</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">Nacrite</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="Aller à un article dans une autre langue. Disponible en 13 langues." > <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-13" 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">13 langues</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Nacrita" title="Nacrita – catalan" lang="ca" hreflang="ca" data-title="Nacrita" data-language-autonym="Català" data-language-local-name="catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Nakrit" title="Nakrit – allemand" lang="de" hreflang="de" data-title="Nakrit" data-language-autonym="Deutsch" data-language-local-name="allemand" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Nacrite" title="Nacrite – anglais" lang="en" hreflang="en" data-title="Nacrite" data-language-autonym="English" data-language-local-name="anglais" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Nacrita" title="Nacrita – espagnol" lang="es" hreflang="es" data-title="Nacrita" data-language-autonym="Español" data-language-local-name="espagnol" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Nacrita" title="Nacrita – basque" lang="eu" hreflang="eu" data-title="Nacrita" data-language-autonym="Euskara" data-language-local-name="basque" 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/%D9%86%D8%A7%DA%A9%D8%B1%DB%8C%D8%AA" title="ناکریت – persan" lang="fa" hreflang="fa" data-title="ناکریت" data-language-autonym="فارسی" data-language-local-name="persan" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Nacrite" title="Nacrite – italien" lang="it" hreflang="it" data-title="Nacrite" data-language-autonym="Italiano" data-language-local-name="italien" 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%83%8A%E3%82%AF%E3%83%AB%E7%9F%B3" title="ナクル石 – japonais" lang="ja" hreflang="ja" data-title="ナクル石" data-language-autonym="日本語" data-language-local-name="japonais" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Nacriet" title="Nacriet – néerlandais" lang="nl" hreflang="nl" data-title="Nacriet" data-language-autonym="Nederlands" data-language-local-name="néerlandais" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Nakryt" title="Nakryt – polonais" lang="pl" hreflang="pl" data-title="Nakryt" data-language-autonym="Polski" data-language-local-name="polonais" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%A8%E0%AE%BE%E0%AE%95%E0%AF%8D%E0%AE%B0%E0%AF%88%E0%AE%9F%E0%AF%8D%E0%AE%9F%E0%AF%81" title="நாக்ரைட்டு – tamoul" lang="ta" hreflang="ta" data-title="நாக்ரைட்டு" data-language-autonym="தமிழ்" data-language-local-name="tamoul" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9D%D0%B0%D0%BA%D1%80%D0%B8%D1%82" title="Накрит – ukrainien" lang="uk" hreflang="uk" data-title="Накрит" data-language-autonym="Українська" data-language-local-name="ukrainien" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%8F%8D%E7%8F%A0%E7%9F%B3" title="珍珠石 – chinois" lang="zh" hreflang="zh" data-title="珍珠石" data-language-autonym="中文" data-language-local-name="chinois" 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/Q418903#sitelinks-wikipedia" title="Modifier les liens interlangues" class="wbc-editpage">Modifier les liens</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="Espaces de noms"> <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/Nacrite" title="Voir le contenu de la page [c]" accesskey="c"><span>Article</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Discussion:Nacrite" rel="discussion" title="Discussion au sujet de cette page de contenu [t]" accesskey="t"><span>Discussion</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="Modifier la variante de langue" > <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">français</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="Affichages"> <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/Nacrite"><span>Lire</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Nacrite&amp;veaction=edit" title="Modifier cette page [v]" accesskey="v"><span>Modifier</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Nacrite&amp;action=edit" title="Modifier le wikicode de cette page [e]" accesskey="e"><span>Modifier le code</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Nacrite&amp;action=history" title="Historique des versions de cette page [h]" accesskey="h"><span>Voir l’historique</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Outils de la page"> <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="Outils" > <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">Outils</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">Outils</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">déplacer vers la barre latérale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">masquer</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Plus d’options" > <div class="vector-menu-heading"> Actions </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/Nacrite"><span>Lire</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Nacrite&amp;veaction=edit" title="Modifier cette page [v]" accesskey="v"><span>Modifier</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Nacrite&amp;action=edit" title="Modifier le wikicode de cette page [e]" accesskey="e"><span>Modifier le code</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Nacrite&amp;action=history"><span>Voir l’historique</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Général </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Sp%C3%A9cial:Pages_li%C3%A9es/Nacrite" title="Liste des pages liées qui pointent sur celle-ci [j]" accesskey="j"><span>Pages liées</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Sp%C3%A9cial:Suivi_des_liens/Nacrite" rel="nofollow" title="Liste des modifications récentes des pages appelées par celle-ci [k]" accesskey="k"><span>Suivi des pages liées</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Aide:Importer_un_fichier" title="Téléverser des fichiers [u]" accesskey="u"><span>Téléverser un fichier</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Sp%C3%A9cial:Pages_sp%C3%A9ciales" title="Liste de toutes les pages spéciales [q]" accesskey="q"><span>Pages spéciales</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Nacrite&amp;oldid=220484336" title="Adresse permanente de cette version de cette page"><span>Lien permanent</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Nacrite&amp;action=info" title="Davantage d’informations sur cette page"><span>Informations sur la page</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Sp%C3%A9cial:Citer&amp;page=Nacrite&amp;id=220484336&amp;wpFormIdentifier=titleform" title="Informations sur la manière de citer cette page"><span>Citer cette page</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Sp%C3%A9cial:UrlShortener&amp;url=https%3A%2F%2Ffr.wikipedia.org%2Fwiki%2FNacrite"><span>Obtenir l'URL raccourcie</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Sp%C3%A9cial:QrCode&amp;url=https%3A%2F%2Ffr.wikipedia.org%2Fwiki%2FNacrite"><span>Télécharger le code 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"> Imprimer / exporter </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=Sp%C3%A9cial:Livre&amp;bookcmd=book_creator&amp;referer=Nacrite"><span>Créer un livre</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Sp%C3%A9cial:DownloadAsPdf&amp;page=Nacrite&amp;action=show-download-screen"><span>Télécharger comme PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Nacrite&amp;printable=yes" title="Version imprimable de cette page [p]" accesskey="p"><span>Version imprimable</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"> Dans d’autres projets </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:Nacrite" 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/Q418903" title="Lien vers l’élément dans le dépôt de données connecté [g]" accesskey="g"><span>Élément 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="Outils de la page"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Apparence"> <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">Apparence</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">déplacer vers la barre latérale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">masquer</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">Un article de Wikipédia, l&#039;encyclopédie libre.</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="fr" dir="ltr"><div class="bandeau-container metadata bandeau-article bandeau-niveau-modere"><figure class="mw-halign-right noviewer" typeof="mw:File"><a href="/wiki/Mod%C3%A8le:%C3%80_sourcer" title="Si ce bandeau n&#39;est plus pertinent, retirez-le. Cliquez ici pour en savoir plus."><img alt="Si ce bandeau n&#39;est plus pertinent, retirez-le. Cliquez ici pour en savoir plus." src="//upload.wikimedia.org/wikipedia/commons/thumb/3/38/Info_Simple.svg/12px-Info_Simple.svg.png" decoding="async" width="12" height="12" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/38/Info_Simple.svg/18px-Info_Simple.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/38/Info_Simple.svg/24px-Info_Simple.svg.png 2x" data-file-width="512" data-file-height="512" /></a><figcaption>Si ce bandeau n'est plus pertinent, retirez-le. Cliquez ici pour en savoir plus.</figcaption></figure><div class="bandeau-cell bandeau-icone" style="display:table-cell;padding-right:0.5em"><span class="noviewer" typeof="mw:File"><a href="/wiki/Fichier:2017-fr.wp-orange-source.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a1/2017-fr.wp-orange-source.svg/45px-2017-fr.wp-orange-source.svg.png" decoding="async" width="45" height="45" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a1/2017-fr.wp-orange-source.svg/68px-2017-fr.wp-orange-source.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a1/2017-fr.wp-orange-source.svg/90px-2017-fr.wp-orange-source.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span></div><div class="bandeau-cell" style="display:table-cell;padding-right:0.5em"> <p><strong class="bandeau-titre">Cet article <a href="/wiki/Wikip%C3%A9dia:Citez_vos_sources" title="Wikipédia:Citez vos sources">ne cite pas suffisamment ses sources</a></strong> <small>(<time class="nowrap" datetime="2023-06" data-sort-value="2023-06">juin 2023</time>).</small> </p><p>Si vous disposez d'ouvrages ou d'articles de référence ou si vous connaissez des sites web de qualité traitant du thème abordé ici, merci de compléter l'article en donnant les <b>références utiles à sa <a href="/wiki/Wikip%C3%A9dia:V%C3%A9rifiabilit%C3%A9" title="Wikipédia:Vérifiabilité">vérifiabilité</a></b> et en les liant à la section «&#160;<a href="/wiki/Aide:Ins%C3%A9rer_une_r%C3%A9f%C3%A9rence" title="Aide:Insérer une référence">Notes et références</a>&#160;». </p><p><b>En pratique&#160;:</b> <a href="/wiki/Wikip%C3%A9dia:Citez_vos_sources#Qualité_des_sources" title="Wikipédia:Citez vos sources">Quelles sources sont attendues&#160;?</a> <a href="/wiki/Aide:Ins%C3%A9rer_une_r%C3%A9f%C3%A9rence_(%C3%89diteur_visuel)" title="Aide:Insérer une référence (Éditeur visuel)">Comment ajouter mes sources&#160;?</a> </p> </div></div> <p class="mw-empty-elt"> </p> <table class="infobox_v2 infobox infobox--frwiki noarchive"> <tbody><tr> <td colspan="2" class="entete defaut" style="background-color:#e1fc7e;color:black;">Nacrite<br /><small>Catégorie&#160;<abbr class="abbr" title="9"><span class="romain" style="text-transform:uppercase">IX</span></abbr>&#160;: silicates<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite_crochet">[</span>1<span class="cite_crochet">]</span></a></sup></small> </td></tr> <tr><td colspan="2" style="text-align:center; line-height: 1.5em;"><span typeof="mw:File/Frameless"><a href="/wiki/Fichier:Nacrite_-_Mineralogisches_Museum_Bonn1.jpg" class="mw-file-description"><img alt="Image illustrative de l’article Nacrite" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c4/Nacrite_-_Mineralogisches_Museum_Bonn1.jpg/280px-Nacrite_-_Mineralogisches_Museum_Bonn1.jpg" decoding="async" width="280" height="261" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c4/Nacrite_-_Mineralogisches_Museum_Bonn1.jpg/420px-Nacrite_-_Mineralogisches_Museum_Bonn1.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c4/Nacrite_-_Mineralogisches_Museum_Bonn1.jpg/560px-Nacrite_-_Mineralogisches_Museum_Bonn1.jpg 2x" data-file-width="2888" data-file-height="2687" /></a></span> </td></tr> <tr> <th colspan="2" style="padding:4px; text-align:center; background-color:#e1fc7e; color:#000000">Général</th></tr> <tr> <th scope="row"><a href="/wiki/Min%C3%A9ral#Définition" title="Minéral">Symbole IMA</a> </th> <td>Ncr </td> </tr> <tr> <th scope="row"><a href="/wiki/Classification_de_Strunz" title="Classification de Strunz">Classe de Strunz</a> </th> <td><div class="NavFrame" title="&#91;+&#93;/&#91;–&#93;" style="border:none; padding: 0;"> <div class="NavHead" style="background-color:transparent; color:var(--color-emphasized, #000); font-weight:normal;"><big>09.ED.05</big></div> <div class="NavContent" style="display:none; text-align:left;"> <p><b>9</b> Unclassified Strunz SILICATES (Germanates)<br /> &#160;<b>9.E</b> Phyllosilicates<br /> &#160;&#160;<b>9.ED</b> Phyllosilicates with kaolinite layers<br /> &#160;&#160;&#160;<b>9.ED.05</b> Dickite Al2Si2O5(OH)4<br />Space Group Cc<br />Point Group m<br /> &#160;&#160;&#160;<b>9.ED.05</b> Kaolinite Al2Si2O5(OH)4<br />Space Group P1<br />Point Group 1<br /> &#160;&#160;&#160;<b>9.ED.05</b> Nacrite Al2Si2O5(OH)4<br />Space Group Cc<br />Point Group m<br /> </p> </div></div> </td> </tr> <tr> <th scope="row"><a href="/wiki/Classification_de_Dana" title="Classification de Dana">Classe de Dana</a> </th> <td><div class="NavFrame" title="&#91;+&#93;/&#91;–&#93;" style="border:none; padding: 0;"> <div class="NavHead" style="background-color:transparent; color:var(--color-emphasized, #000); font-weight:normal;"><big>71.1.1.3</big></div> <div class="NavContent" style="display:none; text-align:left;"> <p>Phyllosilicates<br /> 71. Feuillets d'anneaux à six-membres<br /> 71.1.1/ Groupe de la kaolinite - serpentine, sous-groupe de la kaolinite<br /> </p> </div></div> </td> </tr> <tr class="mw-empty-elt"> </tr><tr><th>Formule chimique</th> <td><span style="display:none"><a href="/wiki/Hydrog%C3%A8ne" title="Hydrogène">H</a><sub>4</sub><a href="/wiki/Aluminium" title="Aluminium">Al</a><sub>2</sub><a href="/wiki/Oxyg%C3%A8ne" title="Oxygène">O</a><sub>9</sub><a href="/wiki/Silicium" title="Silicium">Si</a><sub>2</sub> </span>Al<sub>2</sub>Si<sub>2</sub>O<sub>5</sub>(OH)<sub>4</sub></td></tr><tr><th colspan="2" style="padding:4px; text-align:center; background-color:#e1fc7e; color:#000000">Identification</th></tr> <tr><th scope="row"><a href="/wiki/Masse_mol%C3%A9culaire" title="Masse moléculaire">Masse formulaire</a><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite_crochet">[</span>2<span class="cite_crochet">]</span></a></sup> </th> <td>258,1604&#160;±&#160;0,0036&#160;<a href="/wiki/Unit%C3%A9_de_masse_atomique_unifi%C3%A9e" title="Unité de masse atomique unifiée">uma</a><br /><small>H&#160;1,56&#160;%, &#32;Al&#160;20,9&#160;%, &#32;O&#160;55,78&#160;%, &#32;Si&#160;21,76&#160;%, &#32;</small><br /> </td> </tr> <tr> <th scope="row">Couleur </th> <td>incolore; blanc; jaunâtre; brunâtre; gris; brun jaune pâle. </td> </tr> <tr> <th scope="row"><a href="/wiki/Syst%C3%A8me_cristallin" title="Système cristallin">Système cristallin</a> </th> <td><a href="/wiki/Syst%C3%A8me_cristallin_monoclinique" title="Système cristallin monoclinique">monoclinique</a> </td> </tr> <tr> <th scope="row"><a href="/wiki/R%C3%A9seau_de_Bravais#Espace_tridimensionnel" title="Réseau de Bravais">Réseau de Bravais</a> </th> <td>centré C </td> </tr> <tr> <th scope="row"><a href="/wiki/Classe_cristalline" title="Classe cristalline">Classe cristalline</a> et <a href="/wiki/Groupe_d%27espace" title="Groupe d&#39;espace">groupe d'espace</a> </th> <td>Domatique (m);<br />Cc </td> </tr> <tr> <th scope="row"><a href="/wiki/Clivage" title="Clivage">Clivage</a> </th> <td>parfait à {<a href="/wiki/Indices_de_Miller" class="mw-redirect" title="Indices de Miller">001</a>} </td> </tr> <tr> <th scope="row"><a href="/wiki/Cassure" title="Cassure">Cassure</a> </th> <td>terreuse </td> </tr> <tr> <th scope="row"><a href="/wiki/Habitus_(min%C3%A9ralogie)" title="Habitus (minéralogie)">Habitus</a> </th> <td>tabulaire; pseudo-hexagonal; massif; écaille; agrégat; lamellaire; compact; farineux </td> </tr> <tr> <th scope="row"><a href="/wiki/Faci%C3%A8s_(g%C3%A9ologie)" title="Faciès (géologie)">Faciès</a> </th> <td>cristaux irréguliers pseudo-hexagonaux aplatis, jusqu'à <span class="nowrap"><span title="">8</span>&#160;<span title="millimètre">mm</span></span> </td> </tr> <tr> <th scope="row"><a href="/wiki/%C3%89chelle_de_Mohs" title="Échelle de Mohs">Échelle de Mohs</a> </th> <td>2 - 2,5 </td> </tr> <tr> <th scope="row"><a href="/wiki/Trait_(min%C3%A9ralogie)" title="Trait (minéralogie)">Trait</a> </th> <td>blanc </td> </tr> <tr> <th scope="row"><a href="/wiki/%C3%89clat" title="Éclat">Éclat</a> </th> <td>nacré; mat; terreux; satiné </td> </tr> <tr> <th colspan="2" style="padding:4px; text-align:center; background-color:#e1fc7e; color:#000000">Propriétés optiques</th></tr> <tr> <th scope="row"><a href="/wiki/Indice_de_r%C3%A9fraction" title="Indice de réfraction">Indice de réfraction</a> </th> <td>a=1,557,<br />b=1,562,<br />g=1,563 </td> </tr> <tr> <th scope="row"><a href="/wiki/Bir%C3%A9fringence" title="Biréfringence">Biréfringence</a> </th> <td>Biaxe (-)&#160;; 0,0060 </td> </tr> <tr> <th scope="row"><a href="/wiki/Motif_d%27interf%C3%A9rence_conoscopique#Minéraux_biaxes" title="Motif d&#39;interférence conoscopique">Angle 2V</a> </th> <td>48° </td> </tr> <tr> <th scope="row"><a href="/wiki/Transparence_(physique)" title="Transparence (physique)">Transparence</a> </th> <td>transparent - translucide </td> </tr> <tr><th colspan="2" style="padding:4px; text-align:center; background-color:#e1fc7e; color:#000000">Propriétés chimiques</th></tr> <tr> <th scope="row"><a href="/wiki/Densit%C3%A9" title="Densité">Densité</a> </th> <td>de 2,50 à 2,70 </td> </tr> <tr> <th colspan="2" style="padding:4px; text-align:center; background-color:#e1fc7e; color:#000000">Propriétés physiques</th></tr> <tr> <th scope="row"><a href="/wiki/Magn%C3%A9tisme" title="Magnétisme">Magnétisme</a> </th> <td>aucun </td> </tr> <tr> <th scope="row"><a href="/wiki/Radioactivit%C3%A9" title="Radioactivité">Radioactivité</a> </th> <td>aucune </td> </tr> <tr> <td colspan="2"><hr style="height:2px; background-color:#e1fc7e;" /></td></tr> <tr> <td colspan="2" style="text-align:center;">Unités du <a href="/wiki/Syst%C3%A8me_international_d%27unit%C3%A9s" title="Système international d&#39;unités">SI</a> &amp; <a href="/wiki/Conditions_normales_de_temp%C3%A9rature_et_de_pression" title="Conditions normales de température et de pression">CNTP</a>, sauf indication contraire.</td> </tr><tr><td class="navigation-only" colspan="2" style="border-top: 2px #e1fc7e solid; font-size: 80%; background:inherit; text-align: right;"><span class="plainlinks" style="float:left;"><a class="external text" href="https://fr.wikipedia.org/w/index.php?title=Nacrite&amp;action=edit&amp;section=0"><span class="infodoc">modifier</span></a></span>&#160;<span typeof="mw:File"><a href="/wiki/Mod%C3%A8le:Infobox_Min%C3%A9ral" title="Consultez la documentation du modèle"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/3/38/Info_Simple.svg/12px-Info_Simple.svg.png" decoding="async" width="12" height="12" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/38/Info_Simple.svg/18px-Info_Simple.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/38/Info_Simple.svg/24px-Info_Simple.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span></td> </tr> </tbody></table> <p>La <b>nacrite</b>, est une espèce <a href="/wiki/Min%C3%A9ral" title="Minéral">minérale</a> de la famille des <a href="/wiki/Silicate" title="Silicate">silicates</a> sous-famille des <a href="/wiki/Phyllosilicate" title="Phyllosilicate">phyllosilicates</a>, de formule Al<sub>2</sub>Si<sub>2</sub>O<sub>5</sub>(OH)<sub>4</sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub>. C'est un minéral, silicate d’<a href="/wiki/Aluminium" title="Aluminium">aluminium</a>, du groupe de la <a href="/wiki/Kaolinite" title="Kaolinite">kaolinite</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Historique_de_la_description_et_appellations">Historique de la description et appellations</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nacrite&amp;veaction=edit&amp;section=1" title="Modifier la section : Historique de la description et appellations" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Nacrite&amp;action=edit&amp;section=1" title="Modifier le code source de la section : Historique de la description et appellations"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Inventeur_et_étymologie"><span id="Inventeur_et_.C3.A9tymologie"></span>Inventeur et étymologie</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nacrite&amp;veaction=edit&amp;section=2" title="Modifier la section : Inventeur et étymologie" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Nacrite&amp;action=edit&amp;section=2" title="Modifier le code source de la section : Inventeur et étymologie"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Décrite par le minéralogiste français <a href="/wiki/Alexandre_Brongniart" title="Alexandre Brongniart">Alexandre Brongniart</a><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite_crochet">[</span>3<span class="cite_crochet">]</span></a></sup>, son nom dérive du français <i><a href="/wiki/Nacre" title="Nacre">nacre</a></i>, et indirectement du persan <i>nakar</i>, par référence aux reflets légèrement irisés de ses assemblages d'<a href="/wiki/Granulat" title="Granulat">agrégats</a> microcristallins. </p> <div class="mw-heading mw-heading3"><h3 id="Topotype">Topotype</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nacrite&amp;veaction=edit&amp;section=3" title="Modifier la section : Topotype" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Nacrite&amp;action=edit&amp;section=3" title="Modifier le code source de la section : Topotype"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Mine de Einigkeit, Brand-Erbisdorf, District de <a href="/wiki/Freiberg" title="Freiberg">Freiberg</a>, <a href="/wiki/Erzgebirge" class="mw-redirect" title="Erzgebirge">Erzgebirge</a>, Saxe, Allemagne. </p> <div class="mw-heading mw-heading2"><h2 id="Caractéristiques_physico-chimiques"><span id="Caract.C3.A9ristiques_physico-chimiques"></span>Caractéristiques physico-chimiques</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nacrite&amp;veaction=edit&amp;section=4" title="Modifier la section : Caractéristiques physico-chimiques" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Nacrite&amp;action=edit&amp;section=4" title="Modifier le code source de la section : Caractéristiques physico-chimiques"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Cristallochimie">Cristallochimie</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nacrite&amp;veaction=edit&amp;section=5" title="Modifier la section : Cristallochimie" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Nacrite&amp;action=edit&amp;section=5" title="Modifier le code source de la section : Cristallochimie"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Polymorphisme" class="mw-disambig" title="Polymorphisme">Polymorphisme</a> entre la <a href="/wiki/Dickite" title="Dickite">dickite</a>, l'<a href="/wiki/Halloysite" title="Halloysite">halloysite</a>, la <a href="/wiki/Kaolinite" title="Kaolinite">kaolinite</a> et la <b>nacrite</b>.</li> <li>Elle fait partie du groupe de la <a href="/wiki/Kaolinite" title="Kaolinite">kaolinite</a>.</li></ul> <dl><dt>Groupe de la kaolinite</dt></dl> <ul><li><a href="/wiki/Dickite" title="Dickite">Dickite</a> Al<sub>2</sub>Si<sub>2</sub>O<sub>5</sub>(OH)<sub>4</sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub></li> <li><a href="/w/index.php?title=Endellite&amp;action=edit&amp;redlink=1" class="new" title="Endellite (page inexistante)">Endellite</a> Al<sub>2</sub>Si<sub>2</sub>O<sub>5</sub>(OH)<sub>4</sub>•2(H<sub>2</sub>O)<sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub></li> <li><a href="/wiki/Halloysite" title="Halloysite">Halloysite</a> Al<sub>2</sub>Si<sub>2</sub>O<sub>5</sub>(OH)<sub>4</sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub></li> <li><a href="/wiki/Kaolinite" title="Kaolinite">Kaolinite</a> Al<sub>2</sub>Si<sub>2</sub>O<sub>5</sub>(OH)<sub>4</sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub></li> <li><b>Nacrite</b> Al<sub>2</sub>Si<sub>2</sub>O<sub>5</sub>(OH)<sub>4</sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub></li> <li><a href="/wiki/Odinite" title="Odinite">Odinite</a> (Fe,Mg,Al,Fe,Ti,Mn)<sub>2.5</sub>(Si,Al)<sub>2</sub>O<sub>5</sub>(OH)<sub>4</sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub><sub></sub></li></ul> <div class="mw-heading mw-heading3"><h3 id="Cristallographie">Cristallographie</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nacrite&amp;veaction=edit&amp;section=6" title="Modifier la section : Cristallographie" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Nacrite&amp;action=edit&amp;section=6" title="Modifier le code source de la section : Cristallographie"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Param%C3%A8tre_cristallin" title="Paramètre cristallin">Paramètres</a> de la <a href="/wiki/Maille_(cristallographie)" title="Maille (cristallographie)">maille conventionnelle</a>&#160;: <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle a}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>a</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle a}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/ffd2487510aa438433a2579450ab2b3d557e5edc" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.23ex; height:1.676ex;" alt="{\displaystyle a}"></span> = 8,90&#160;<abbr class="abbr" title="ångström">Å</abbr>, <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle b}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>b</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle b}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f11423fbb2e967f986e36804a8ae4271734917c3" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:0.998ex; height:2.176ex;" alt="{\displaystyle b}"></span> = 5,14&#160;<abbr class="abbr" title="ångström">Å</abbr>, <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle c}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>c</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle c}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/86a67b81c2de995bd608d5b2df50cd8cd7d92455" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.007ex; height:1.676ex;" alt="{\displaystyle c}"></span> = 15,69&#160;<abbr class="abbr" title="ångström">Å</abbr>&#160;; Z = 4&#160;; V = 658,95&#160;<abbr class="abbr" title="ångström cube">Å<sup>3</sup></abbr></li> <li>Densité calculée = <span title="2&#160;600 kg/m³" style="cursor:help">2,60</span>&#160;<abbr class="abbr" title="gramme par centimètre cube">g&#160;cm<sup>−3</sup></abbr></li></ul> <div class="mw-heading mw-heading2"><h2 id="Gîtes_et_gisements"><span id="G.C3.AEtes_et_gisements"></span>Gîtes et gisements</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nacrite&amp;veaction=edit&amp;section=7" title="Modifier la section : Gîtes et gisements" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Nacrite&amp;action=edit&amp;section=7" title="Modifier le code source de la section : Gîtes et gisements"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Gîtologie_et_minéraux_associés"><span id="G.C3.AEtologie_et_min.C3.A9raux_associ.C3.A9s"></span>Gîtologie et minéraux associés</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nacrite&amp;veaction=edit&amp;section=8" title="Modifier la section : Gîtologie et minéraux associés" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Nacrite&amp;action=edit&amp;section=8" title="Modifier le code source de la section : Gîtologie et minéraux associés"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <dl><dt>Gîtologie</dt> <dd>dans les zones de formation <a href="/wiki/Hydrothermalisme" title="Hydrothermalisme">hydrothermale</a> ou secondaire et les dépôts métallifères.</dd> <dt>minéraux associés</dt> <dd><a href="/wiki/Calcite" title="Calcite">Calcite</a>, <a href="/wiki/Dickite" title="Dickite">dickite</a>, <a href="/wiki/Kaolinite" title="Kaolinite">kaolinite</a>, <a href="/wiki/Mica" title="Mica">micas</a>, <a href="/wiki/Quartz_(min%C3%A9ral)" title="Quartz (minéral)">quartz</a>.</dd></dl> <div class="mw-heading mw-heading3"><h3 id="Gisements_producteurs_de_spécimens_remarquables"><span id="Gisements_producteurs_de_sp.C3.A9cimens_remarquables"></span>Gisements producteurs de spécimens remarquables</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nacrite&amp;veaction=edit&amp;section=9" title="Modifier la section : Gisements producteurs de spécimens remarquables" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Nacrite&amp;action=edit&amp;section=9" title="Modifier le code source de la section : Gisements producteurs de spécimens remarquables"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Allemagne</li></ul> <dl><dd>Mine de Einigkeit, Brand-Erbisdorf, District de <a href="/wiki/Freiberg" title="Freiberg">Freiberg</a>, <a href="/wiki/Erzgebirge" class="mw-redirect" title="Erzgebirge">Erzgebirge</a>, Saxe (topotype)</dd> <dd>Brand, près de <a href="/wiki/Fribourg-en-Brisgau" title="Fribourg-en-Brisgau">Fribourg-en-Brisgau</a></dd></dl> <ul><li>Canada</li></ul> <dl><dd>Carrière Mathers, <a href="/wiki/Saint-Eustache_(Qu%C3%A9bec)" title="Saint-Eustache (Québec)">Saint-Eustache</a>, <a href="/wiki/Deux-Montagnes_(municipalit%C3%A9_r%C3%A9gionale_de_comt%C3%A9)" title="Deux-Montagnes (municipalité régionale de comté)">Deux-Montagnes (municipalité régionale de comté)</a>, Québec<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite_crochet">[</span>4<span class="cite_crochet">]</span></a></sup></dd></dl> <ul><li>États-Unis</li></ul> <dl><dd><a href="/w/index.php?title=Saint_Peters_Dome&amp;action=edit&amp;redlink=1" class="new" title="Saint Peters Dome (page inexistante)">Saint Peters Dome</a>, au <a href="/wiki/Colorado" title="Colorado">Colorado</a></dd></dl> <ul><li>Italie</li></ul> <dl><dd>Mine de <a href="/wiki/Traversella" title="Traversella">Traversella</a>, <a href="/wiki/Province_de_Turin" title="Province de Turin">province de Turin</a></dd> <dd><a href="/wiki/Mont_Capanne" title="Mont Capanne">Mont Capanne</a>, dans l'<a href="/wiki/%C3%8Ele_d%27Elbe" title="Île d&#39;Elbe">île d'Elbe</a></dd></dl> <ul><li>Tchéquie</li></ul> <dl><dd><a href="/wiki/Horn%C3%AC_Slavkov" class="mw-redirect" title="Hornì Slavkov">Hornì Slavkov</a>, en <a href="/wiki/Boh%C3%AAme" title="Bohême">Bohême</a></dd></dl> <div class="mw-heading mw-heading2"><h2 id="Notes_et_références"><span id="Notes_et_r.C3.A9f.C3.A9rences"></span>Notes et références</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nacrite&amp;veaction=edit&amp;section=10" title="Modifier la section : Notes et références" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Nacrite&amp;action=edit&amp;section=10" title="Modifier le code source de la section : Notes et références"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="references-small decimal" style=""><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink noprint"><a href="#cite_ref-1">↑</a> </span><span class="reference-text">La <a href="/wiki/Classification_des_min%C3%A9raux" title="Classification des minéraux">classification des minéraux</a> choisie est <a href="/wiki/Classification_de_Strunz" title="Classification de Strunz">celle de Strunz</a>, à l'exception des polymorphes de la silice, qui sont classés parmi les silicates.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink noprint"><a href="#cite_ref-2">↑</a> </span><span class="reference-text">Masse molaire calculée d’après <span class="ouvrage">«&#160;<a rel="nofollow" class="external text" href="http://www.chem.qmul.ac.uk/iupac/AtWt/AtWt07.html"><cite style="font-style:normal;"><span class="lang-en" lang="en">Atomic weights of the elements 2007</span></cite></a>&#160;», sur <span class="italique">www.chem.qmul.ac.uk</span></span>.</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink noprint"><a href="#cite_ref-3">↑</a> </span><span class="reference-text">Brongniart, A (1807); Traité élémentaire de Minéralogie, Paris I, 505.</span> </li> <li id="cite_note-4"><span class="mw-cite-backlink noprint"><a href="#cite_ref-4">↑</a> </span><span class="reference-text">Sabina (1983) Miscellaneous Report 32, Geological Survey of Canada, 54-55.</span> </li> </ol> </div> <div class="mw-heading mw-heading2"><h2 id="Annexes">Annexes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nacrite&amp;veaction=edit&amp;section=11" title="Modifier la section : Annexes" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a 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class="project">Wikimedia Commons</span></li> </ul> </div> <div class="mw-heading mw-heading3"><h3 id="Liens_externes">Liens externes</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nacrite&amp;veaction=edit&amp;section=12" title="Modifier la section : Liens externes" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Nacrite&amp;action=edit&amp;section=12" title="Modifier le code source de la section : Liens externes"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><span class="ouvrage"><abbr class="abbr indicateur-langue" title="Langue : anglais">(en)</abbr> «&#160;<a rel="nofollow" class="external text" href="http://webmineral.com/data/Nacrite.shtml"><cite style="font-style:normal;" lang="en">Nacrite Mineral Data</cite></a>&#160;», sur <span class="italique">webmineral.com</span> <small style="line-height:1em;">(consulté le <time class="nowrap" datetime="2023-08-18" data-sort-value="2023-08-18">18 août 2023</time>)</small></span></li></ul> <div class="navbox-container" style="clear:both;"> <table class="navbox collapsible noprint uncollapsed" style=""> <tbody><tr><th class="navbox-title" colspan="2" style=""><div style="float:left; width:6em; text-align:left"><div class="noprint plainlinks nowrap tnavbar" style="padding:0; font-size:xx-small; color:var(--color-emphasized, #000000);"><a href="/wiki/Mod%C3%A8le:Palette_Liste_des_min%C3%A9raux" title="Modèle:Palette Liste des minéraux"><abbr class="abbr" title="Voir ce modèle.">v</abbr></a>&#160;· <a class="external text" href="https://fr.wikipedia.org/w/index.php?title=Mod%C3%A8le:Palette_Liste_des_min%C3%A9raux&amp;action=edit"><abbr class="abbr" title="Modifier ce modèle. Merci de prévisualiser avant de sauvegarder.">m</abbr></a></div></div><div style="font-size:110%"><a href="/wiki/Liste_de_min%C3%A9raux" title="Liste de minéraux">Liste de minéraux</a>, par ordre alphabétique</div></th> </tr> <tr> <td class="navbox-list" style="text-align:center;" colspan="2"><div class="liste-horizontale"> <ul><li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_A)" title="Liste de minéraux (lettre A)">A</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_B)" title="Liste de minéraux (lettre B)">B</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_C)" title="Liste de minéraux (lettre C)">C</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_D)" title="Liste de minéraux (lettre D)">D</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_E)" title="Liste de minéraux (lettre E)">E</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_F)" title="Liste de minéraux (lettre F)">F</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_G)" title="Liste de minéraux (lettre G)">G</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_H)" title="Liste de minéraux (lettre H)">H</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_I)" title="Liste de minéraux (lettre I)">I</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_J)" title="Liste de minéraux (lettre J)">J</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_K)" title="Liste de minéraux (lettre K)">K</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_L)" title="Liste de minéraux (lettre L)">L</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_M)" title="Liste de minéraux (lettre M)">M</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_N)" title="Liste de minéraux (lettre N)">N</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_O)" title="Liste de minéraux (lettre O)">O</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_P)" title="Liste de minéraux (lettre P)">P</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_Q)" title="Liste de minéraux (lettre Q)">Q</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_R)" title="Liste de minéraux (lettre R)">R</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_S)" title="Liste de minéraux (lettre S)">S</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_T)" title="Liste de minéraux (lettre T)">T</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_U)" title="Liste de minéraux (lettre U)">U</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_V)" title="Liste de minéraux (lettre V)">V</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_W)" title="Liste de minéraux (lettre W)">W</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_X)" title="Liste de minéraux (lettre X)">X</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_Y)" title="Liste de minéraux (lettre Y)">Y</a></li> <li><a href="/wiki/Liste_de_min%C3%A9raux_(lettre_Z)" title="Liste de minéraux (lettre Z)">Z</a></li></ul> </div></td> </tr> </tbody></table> </div> <ul id="bandeau-portail" class="bandeau-portail"><li><span class="bandeau-portail-element"><span class="bandeau-portail-icone"><span class="noviewer skin-invert-image" typeof="mw:File"><a href="/wiki/Portail:Min%C3%A9raux_et_roches" title="Portail des minéraux et roches"><img alt="icône décorative" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a1/Emerald_rough_300x422.jpg/17px-Emerald_rough_300x422.jpg" decoding="async" width="17" height="24" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a1/Emerald_rough_300x422.jpg/25px-Emerald_rough_300x422.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a1/Emerald_rough_300x422.jpg/34px-Emerald_rough_300x422.jpg 2x" data-file-width="300" data-file-height="422" /></a></span></span> <span class="bandeau-portail-texte"><a href="/wiki/Portail:Min%C3%A9raux_et_roches" title="Portail:Minéraux et roches">Portail des minéraux et roches</a></span> </span></li> <li><span class="bandeau-portail-element"><span class="bandeau-portail-icone"><span class="noviewer" typeof="mw:File"><a href="/wiki/Portail:Chimie" title="Portail de la chimie"><img alt="icône décorative" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/59/Nuvola_apps_edu_science.svg/24px-Nuvola_apps_edu_science.svg.png" decoding="async" width="24" height="24" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/59/Nuvola_apps_edu_science.svg/36px-Nuvola_apps_edu_science.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/59/Nuvola_apps_edu_science.svg/48px-Nuvola_apps_edu_science.svg.png 2x" data-file-width="128" data-file-height="128" /></a></span></span> <span class="bandeau-portail-texte"><a href="/wiki/Portail:Chimie" title="Portail:Chimie">Portail de la chimie</a></span> </span></li> </ul> <!-- NewPP limit report Parsed by mw‐web.eqiad.main‐67b45cfb6f‐8qrxc Cached time: 20241128143155 Cache expiry: 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