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class="vector-dropdown " title="Modifica la dimensione, la larghezza e il colore del testo" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Aspetto" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-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-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Aspetto</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="https://donate.wikimedia.org/?wmf_source=donate&wmf_medium=sidebar&wmf_campaign=it.wikipedia.org&uselang=it" class=""><span>Fai una donazione</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Speciale:CreaUtenza&returnto=Indicolite" title="Si consiglia di registrarsi e di effettuare l'accesso, anche se non è obbligatorio" class=""><span>registrati</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Speciale:Entra&returnto=Indicolite" 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class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Sito"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Indice" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Indice</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">nascondi</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li 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">Inizio</div> </a> </li> <li id="toc-Storia" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Storia"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Storia</span> </div> </a> <ul id="toc-Storia-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Abito_cristallino" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Abito_cristallino"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Abito cristallino</span> </div> </a> <ul id="toc-Abito_cristallino-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Origine_e_giacitura" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Origine_e_giacitura"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Origine e giacitura</span> </div> </a> <ul id="toc-Origine_e_giacitura-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Forme_in_cui_si_presenta_in_natura" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Forme_in_cui_si_presenta_in_natura"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Forme in cui si presenta in natura</span> </div> </a> <ul id="toc-Forme_in_cui_si_presenta_in_natura-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Caratteristiche_chimico-fisiche" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Caratteristiche_chimico-fisiche"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Caratteristiche chimico-fisiche</span> </div> </a> <ul id="toc-Caratteristiche_chimico-fisiche-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Il_taglio" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Il_taglio"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Il taglio</span> </div> </a> <ul id="toc-Il_taglio-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Gemme_simili" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Gemme_simili"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Gemme simili</span> </div> </a> <ul id="toc-Gemme_simili-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Note" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Note"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>Note</span> </div> </a> <ul id="toc-Note-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Altri_progetti" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Altri_progetti"> <div class="vector-toc-text"> <span class="vector-toc-numb">9</span> <span>Altri progetti</span> </div> </a> <ul id="toc-Altri_progetti-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Collegamenti_esterni" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Collegamenti_esterni"> <div class="vector-toc-text"> <span class="vector-toc-numb">10</span> <span>Collegamenti esterni</span> </div> </a> <ul id="toc-Collegamenti_esterni-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="Indice" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" title="Indice" > <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="Mostra/Nascondi l'indice" > <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 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Disponibile in 3 lingue" > <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-3" 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">3 lingue</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Indygolit" title="Indygolit - polacco" lang="pl" hreflang="pl" data-title="Indygolit" data-language-autonym="Polski" data-language-local-name="polacco" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%98%D0%BD%D0%B4%D0%B8%D0%B3%D0%BE%D0%BB%D0%B8%D1%82" title="Индиголит - russo" lang="ru" hreflang="ru" data-title="Индиголит" data-language-autonym="Русский" data-language-local-name="russo" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%86%D0%BD%D0%B4%D0%B8%D0%B3%D0%BE%D0%BB%D1%96%D1%82" title="Індиголіт - ucraino" lang="uk" hreflang="uk" data-title="Індиголіт" data-language-autonym="Українська" data-language-local-name="ucraino" class="interlanguage-link-target"><span>Українська</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/Q3798252#sitelinks-wikipedia" title="Modifica collegamenti interlinguistici" class="wbc-editpage">Modifica collegamenti</a></span></div> </div> </div> </div> </header> <div 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class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">nascondi</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Altre opzioni" > <div class="vector-menu-heading"> Azioni </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/Indicolite"><span>Leggi</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Indicolite&veaction=edit" title="Modifica questa pagina [v]" accesskey="v"><span>Modifica</span></a></li><li id="ca-more-edit" class="collapsible 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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"> Stampa/esporta </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=Speciale:Libro&bookcmd=book_creator&referer=Indicolite"><span>Crea un libro</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Speciale:DownloadAsPdf&page=Indicolite&action=show-download-screen"><span>Scarica come PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Indicolite&printable=yes" title="Versione stampabile di questa pagina [p]" accesskey="p"><span>Versione stampabile</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"> In altri progetti </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:Indicolite" 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/Q3798252" title="Collegamento all'elemento connesso dell'archivio dati [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="Strumenti pagine"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Aspetto"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div 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</div> <div id="siteSub" class="noprint">Da Wikipedia, l'enciclopedia libera.</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="it" dir="ltr"><style data-mw-deduplicate="TemplateStyles:r130658582">body:not(.skin-minerva) .mw-parser-output .torna-a{font-size:95%}</style> <style data-mw-deduplicate="TemplateStyles:r139142988">.mw-parser-output .hatnote-content{align-items:center;display:flex}.mw-parser-output .hatnote-icon{flex-shrink:0}.mw-parser-output .hatnote-icon img{display:flex}.mw-parser-output .hatnote-text{font-style:italic}body:not(.skin-minerva) .mw-parser-output .hatnote{border:1px solid #CCC;display:flex;margin:.5em 0;padding:.2em .5em}body:not(.skin-minerva) .mw-parser-output .hatnote-text{padding-left:.5em}body.skin-minerva .mw-parser-output .hatnote-icon{padding-right:8px}body.skin-minerva .mw-parser-output .hatnote-icon img{height:auto;width:16px}body.skin--responsive .mw-parser-output .hatnote a.new{color:#d73333}body.skin--responsive .mw-parser-output .hatnote a.new:visited{color:#a55858}</style> <div class="hatnote noprint torna-a"> <div class="hatnote-content"><span class="noviewer hatnote-icon" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/1leftarrow_blue.svg/18px-1leftarrow_blue.svg.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/1leftarrow_blue.svg/27px-1leftarrow_blue.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d6/1leftarrow_blue.svg/36px-1leftarrow_blue.svg.png 2x" data-file-width="480" data-file-height="480" /></span></span> <span class="hatnote-text">Voce principale: <b><a href="/wiki/Elbaite" title="Elbaite">Elbaite</a></b>.</span></div> </div> <style data-mw-deduplicate="TemplateStyles:r143074810">.mw-parser-output .sinottico{background-color:#f8f9fa;border:1px solid #c8ccd1;border-spacing:0;clear:right;float:right;font-size:95%;line-height:1.4em;margin:0 0 1em 1.5em;width:280px}.mw-parser-output .sinottico caption{font-weight:bold}.mw-parser-output .sinottico>tbody>tr>th:not(:only-child),.mw-parser-output .sinottico_annidata>tbody>tr>th:not(:only-child){background-color:#f3f3f3;border-right:1px solid #e5e5e8;text-align:left;vertical-align:top}.mw-parser-output .sinottico>tbody>tr:not(:last-child)>td,.mw-parser-output .sinottico>tbody>tr:not(:last-child)>th,.mw-parser-output .sinottico_annidata>tbody>tr>td,.mw-parser-output .sinottico_annidata>tbody>tr>th{border-bottom:1px solid #e0e0e0}.mw-parser-output .sinottico>tbody>tr>td,.mw-parser-output .sinottico>tbody>tr>th:not(:only-child),.mw-parser-output .sinottico_annidata>tbody>tr>td,.mw-parser-output .sinottico_annidata>tbody>tr>th:not(:only-child){padding:.25em .4em}.mw-parser-output .sinottico>tbody>tr>td,.mw-parser-output .sinottico_annidata>tbody>tr>td{vertical-align:middle}.mw-parser-output .sinottico>tbody>tr>td>hr:only-child{margin:0.4em 0.2em}.mw-parser-output .sinottico ul{margin:0 0 0 1em;padding:0}.mw-parser-output .sinottico_annidata{border-spacing:0;margin:0 -.4em;width:calc(100% + calc(.4em*2))}.mw-parser-output .sinottico_annidata:last-child{margin-bottom:-.2em}.mw-parser-output .sinottico_annidata:last-child>tbody>tr:last-child>td,.mw-parser-output .sinottico_annidata:last-child>tbody>tr:last-child>th{border-bottom:none}.mw-parser-output .sinottico_divisione+.sinottico_divisione>th,.mw-parser-output .sinottico_testata+.sinottico_divisione>th{border-top:2px solid #f8f9fa}.mw-parser-output .sinottico_divisione th{background-color:#eeeeee;padding:.15em .4em;text-align:center}.mw-parser-output .sinottico_piede{text-align:center;font-size:90%;background:#EFEFEF}.mw-parser-output .sinottico_piede2{background-color:white;font-size:xx-small;padding-bottom:0;text-align:right}.mw-parser-output .sinottico_sottotitolo{font-size:80%}.mw-parser-output .sinottico_testata th{background-color:#dedede;font-size:116%;padding:.2em .4em;text-align:center}.mw-parser-output .sinottico_testo_centrale{text-align:center}</style><table class="infobox sinottico" summary="Tabella sinottica che riassume i principali dati del soggetto"><tbody><tr class="sinottico_testata"><th colspan="2" style="background:#a0ffa0">Indicolite</th></tr><tr><td class="sinottico_testo_centrale" colspan="2"><figure class="mw-halign-center" typeof="mw:File/Frameless"><a href="/wiki/File:Tourmaline,_feldspar.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/ac/Tourmaline%2C_feldspar.jpg/203px-Tourmaline%2C_feldspar.jpg" decoding="async" width="203" height="300" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/ac/Tourmaline%2C_feldspar.jpg/305px-Tourmaline%2C_feldspar.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/ac/Tourmaline%2C_feldspar.jpg/406px-Tourmaline%2C_feldspar.jpg 2x" data-file-width="2657" data-file-height="3924" /></a><figcaption></figcaption></figure></td></tr><tr><th><a href="/wiki/Classificazione_Strunz" title="Classificazione Strunz">Classificazione Strunz</a></th><td>  </td></tr><tr><th><a href="/wiki/Formula_bruta" title="Formula bruta">Formula chimica</a></th><td>Na(Li,Al)<sub>3</sub>Al<sub>6</sub>(OH)<sub>4</sub>(BO<sub>3</sub>)<sub>3</sub>(OH)<sub>4</sub><sup id="cite_ref-De_Agostini_1-0" class="reference"><a href="#cite_note-De_Agostini-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr><tr class="sinottico_divisione"><th colspan="2" style="background:#a0ffa0">Proprietà cristallografiche</th></tr><tr><th><a href="/wiki/Gruppo_cristallino" title="Gruppo cristallino">Gruppo cristallino</a></th><td>dimetrico </td></tr><tr><th><a href="/wiki/Sistema_cristallino" title="Sistema cristallino">Sistema cristallino</a></th><td>trigonale<sup id="cite_ref-De_Agostini_1-1" class="reference"><a href="#cite_note-De_Agostini-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr><tr><th><a href="/wiki/Classe_di_simmetria" title="Classe di simmetria">Classe di simmetria</a></th><td>ditrigonale-dipiramidale </td></tr><tr><th><a href="/wiki/Costante_di_reticolo" title="Costante di reticolo">Parametri di cella</a></th><td>  </td></tr><tr><th><a href="/wiki/Classe_di_simmetria" title="Classe di simmetria">Gruppo puntuale</a></th><td>  </td></tr><tr><th><a href="/wiki/Gruppo_spaziale" title="Gruppo spaziale">Gruppo spaziale</a></th><td>  </td></tr><tr class="sinottico_divisione"><th colspan="2" style="background:#a0ffa0">Proprietà fisiche</th></tr><tr><th>Densità</th><td>3-3,5<sup id="cite_ref-De_Agostini_1-2" class="reference"><a href="#cite_note-De_Agostini-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> g/cm³ </td></tr><tr><th>Durezza (<a href="/wiki/Scala_di_Mohs" title="Scala di Mohs">Mohs</a>)</th><td>7,5<sup id="cite_ref-De_Agostini_1-3" class="reference"><a href="#cite_note-De_Agostini-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr><tr><th><a href="/wiki/Sfaldatura" title="Sfaldatura">Sfaldatura</a></th><td>assente<sup id="cite_ref-De_Agostini_1-4" class="reference"><a href="#cite_note-De_Agostini-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr><tr><th><a href="/wiki/Frattura_(mineralogia)" title="Frattura (mineralogia)">Frattura</a></th><td>concoide<sup id="cite_ref-De_Agostini_1-5" class="reference"><a href="#cite_note-De_Agostini-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr><tr><th>Colore</th><td>blu-verde<sup id="cite_ref-De_Agostini_1-6" class="reference"><a href="#cite_note-De_Agostini-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr><tr><th>Lucentezza</th><td>vitrea<sup id="cite_ref-De_Agostini_1-7" class="reference"><a href="#cite_note-De_Agostini-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr><tr><th>Opacità</th><td>  </td></tr><tr><th><a href="/wiki/Striscio" title="Striscio">Striscio</a></th><td>  </td></tr><tr><th>Diffusione</th><td>molto rara<sup id="cite_ref-De_Agostini_1-8" class="reference"><a href="#cite_note-De_Agostini-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr><tr><td colspan="2" class="sinottico_piede" style="background:#a0ffa0"><small>Si invita a seguire lo schema di <i><a href="/wiki/Wikipedia:Modello_di_voce/Minerali/Esempio" title="Wikipedia:Modello di voce/Minerali/Esempio">Modello di voce – Minerale</a></i></small> </td></tr></tbody></table> <p>L'<b>indicolite</b> è un <a href="/wiki/Minerale" title="Minerale">minerale</a>, una varietà di <a href="/wiki/Elbaite" title="Elbaite">elbaite</a> ed è un <a href="/wiki/Silicato" title="Silicato">silicato</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Storia">Storia</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Indicolite&veaction=edit&section=1" title="Modifica la sezione Storia" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Indicolite&action=edit&section=1" title="Edit section's source code: Storia"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Il minerale è conosciuto in Europa dal <a href="/wiki/1703" title="1703">1703</a> quando il minerale fu portato dallo <a href="/wiki/Sri_Lanka" title="Sri Lanka">Sri Lanka</a>. Scarse sono le notizie della <a href="/wiki/Tormalina" title="Tormalina">tormalina</a> in epoche storiche, tuttavia vi sono degli esempi di intagli su tormalina raffiguranti animali risalenti all'<a href="/wiki/Epoca_romana" class="mw-redirect" title="Epoca romana">epoca romana</a><sup id="cite_ref-De_Agostini_1-9" class="reference"><a href="#cite_note-De_Agostini-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>.<br /> Dato che questo minerale è <a href="/wiki/Piezoelettrico" class="mw-redirect" title="Piezoelettrico">piezoelettrico</a> come tutte le tormaline in passato si ritenne che questo minerale possedesse dei poteri occulti<sup id="cite_ref-De_Agostini_1-10" class="reference"><a href="#cite_note-De_Agostini-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>. </p><p>In nome del minerale deriva dal latino e allude al colore blu del minerale<sup id="cite_ref-De_Agostini_1-11" class="reference"><a href="#cite_note-De_Agostini-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>. </p> <div class="mw-heading mw-heading2"><h2 id="Abito_cristallino">Abito cristallino</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Indicolite&veaction=edit&section=2" title="Modifica la sezione Abito cristallino" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Indicolite&action=edit&section=2" title="Edit section's source code: Abito cristallino"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Prismatico con delle striature verticali<sup id="cite_ref-De_Agostini_1-12" class="reference"><a href="#cite_note-De_Agostini-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>. </p> <div class="mw-heading mw-heading2"><h2 id="Origine_e_giacitura">Origine e giacitura</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Indicolite&veaction=edit&section=3" title="Modifica la sezione Origine e giacitura" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Indicolite&action=edit&section=3" title="Edit section's source code: Origine e giacitura"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Le indicoliti si trovano nelle rocce <a href="/wiki/Granito" title="Granito">granitiche</a>, <a href="/wiki/Pegmatite" title="Pegmatite">pegmatitiche</a>, <a href="/wiki/Rocce_metamorfiche" class="mw-redirect" title="Rocce metamorfiche">metamorfiche</a> e <a href="/wiki/Rocce_sedimentarie" class="mw-redirect" title="Rocce sedimentarie">sedimentarie</a> e in <a href="/wiki/Scisto" title="Scisto">scisti</a> cristallini<sup id="cite_ref-De_Agostini_1-13" class="reference"><a href="#cite_note-De_Agostini-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>. </p> <div class="mw-heading mw-heading2"><h2 id="Forme_in_cui_si_presenta_in_natura">Forme in cui si presenta in natura</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Indicolite&veaction=edit&section=4" title="Modifica la sezione Forme in cui si presenta in natura" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Indicolite&action=edit&section=4" title="Edit section's source code: Forme in cui si presenta in natura"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>L'indicolite può avere delle inclusioni che formano dei canaletti comunicanti detti "trichiti", pieni di liquido o di bolle gassose<sup id="cite_ref-De_Agostini_1-14" class="reference"><a href="#cite_note-De_Agostini-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>. </p><p>Alcuni campioni possono mostrare delle tonalità verde o una tinta fosca, tuttavia le varietà più pregiate sono i campioni color blu luminoso o azzurro<sup id="cite_ref-Peruzzo_2-0" class="reference"><a href="#cite_note-Peruzzo-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>. </p> <div class="mw-heading mw-heading2"><h2 id="Caratteristiche_chimico-fisiche">Caratteristiche chimico-fisiche</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Indicolite&veaction=edit&section=5" title="Modifica la sezione Caratteristiche chimico-fisiche" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Indicolite&action=edit&section=5" title="Edit section's source code: Caratteristiche chimico-fisiche"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>L'indicolite è <a href="/wiki/Piroelettricit%C3%A0" title="Piroelettricità">piroelettrica</a>, piezoelettrica e consta di <a href="/wiki/Pleocroismo" title="Pleocroismo">pleocroismo</a><sup id="cite_ref-De_Agostini_1-15" class="reference"><a href="#cite_note-De_Agostini-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>. </p><p>Gli indici di rifrazione sono: 1,63-1,65 e 3,10-3,12<sup id="cite_ref-Peruzzo_2-1" class="reference"><a href="#cite_note-Peruzzo-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>. </p> <div class="mw-heading mw-heading2"><h2 id="Il_taglio">Il taglio</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Indicolite&veaction=edit&section=6" title="Modifica la sezione Il taglio" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Indicolite&action=edit&section=6" title="Edit section's source code: Il taglio"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>L'indicolite può essere tagliata in forma ovale, rotonda o a <a href="/wiki/Cabochon" title="Cabochon">cabochon</a>, in quest'ultimo caso per metterne in evidenza il <a href="/wiki/Effetti_ottici_nei_minerali#Gatteggiamento" title="Effetti ottici nei minerali">gatteggiamento</a>. L'indicolite viene usata anche per incisioni<sup id="cite_ref-De_Agostini_1-16" class="reference"><a href="#cite_note-De_Agostini-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>. </p> <div class="mw-heading mw-heading2"><h2 id="Gemme_simili">Gemme simili</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Indicolite&veaction=edit&section=7" title="Modifica la sezione Gemme simili" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Indicolite&action=edit&section=7" title="Edit section's source code: Gemme simili"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Nei casi di indicolite color blu intenso è facilmente imitabile da: </p> <ul><li><a href="/wiki/Zaffiro" title="Zaffiro">zaffiro</a><sup id="cite_ref-De_Agostini_1-17" class="reference"><a href="#cite_note-De_Agostini-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Peruzzo_2-2" class="reference"><a href="#cite_note-Peruzzo-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Spinello_(mineralogia)" title="Spinello (mineralogia)">spinello</a> blu<sup id="cite_ref-Peruzzo_2-3" class="reference"><a href="#cite_note-Peruzzo-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Cordierite" title="Cordierite">cordierite</a><sup id="cite_ref-Peruzzo_2-4" class="reference"><a href="#cite_note-Peruzzo-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Zircone" title="Zircone">zircone</a> blu<sup id="cite_ref-Peruzzo_2-5" class="reference"><a href="#cite_note-Peruzzo-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></li></ul> <p>Tuttavia negli altri casi non si conoscono altre gemme atte ad imitare perfettamente questo tipo di tormalina<sup id="cite_ref-De_Agostini_1-18" class="reference"><a href="#cite_note-De_Agostini-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>. </p> <div class="mw-heading mw-heading2"><h2 id="Note">Note</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Indicolite&veaction=edit&section=8" title="Modifica la sezione Note" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Indicolite&action=edit&section=8" title="Edit section's source code: Note"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-De_Agostini-1"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-De_Agostini_1-0">a</a></i></sup> <sup><i><a href="#cite_ref-De_Agostini_1-1">b</a></i></sup> <sup><i><a href="#cite_ref-De_Agostini_1-2">c</a></i></sup> <sup><i><a href="#cite_ref-De_Agostini_1-3">d</a></i></sup> <sup><i><a href="#cite_ref-De_Agostini_1-4">e</a></i></sup> <sup><i><a href="#cite_ref-De_Agostini_1-5">f</a></i></sup> <sup><i><a href="#cite_ref-De_Agostini_1-6">g</a></i></sup> <sup><i><a href="#cite_ref-De_Agostini_1-7">h</a></i></sup> <sup><i><a href="#cite_ref-De_Agostini_1-8">i</a></i></sup> <sup><i><a href="#cite_ref-De_Agostini_1-9">j</a></i></sup> <sup><i><a href="#cite_ref-De_Agostini_1-10">k</a></i></sup> <sup><i><a href="#cite_ref-De_Agostini_1-11">l</a></i></sup> <sup><i><a href="#cite_ref-De_Agostini_1-12">m</a></i></sup> <sup><i><a href="#cite_ref-De_Agostini_1-13">n</a></i></sup> <sup><i><a href="#cite_ref-De_Agostini_1-14">o</a></i></sup> <sup><i><a href="#cite_ref-De_Agostini_1-15">p</a></i></sup> <sup><i><a href="#cite_ref-De_Agostini_1-16">q</a></i></sup> <sup><i><a href="#cite_ref-De_Agostini_1-17">r</a></i></sup> <sup><i><a href="#cite_ref-De_Agostini_1-18">s</a></i></sup></span> <span class="reference-text">Autori Vari, Scheda indicolite in "Il magico mondo di minerali & gemme Guida pratica per scoprirli e collezionarli", De Agostini (1993-1996), Novara.</span> </li> <li id="cite_note-Peruzzo-2"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-Peruzzo_2-0">a</a></i></sup> <sup><i><a href="#cite_ref-Peruzzo_2-1">b</a></i></sup> <sup><i><a href="#cite_ref-Peruzzo_2-2">c</a></i></sup> <sup><i><a href="#cite_ref-Peruzzo_2-3">d</a></i></sup> <sup><i><a href="#cite_ref-Peruzzo_2-4">e</a></i></sup> <sup><i><a href="#cite_ref-Peruzzo_2-5">f</a></i></sup></span> <span class="reference-text">Autori Vari, Le varietà di tormalina, sezione Indicolite in "Come collezionare i minerali dalla A alla Z", vol III, pagg. 718-719, Peruzzo editore (1988), Milano.</span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Altri_progetti">Altri progetti</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Indicolite&veaction=edit&section=9" title="Modifica la sezione Altri progetti" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Indicolite&action=edit&section=9" title="Edit section's source code: Altri progetti"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div id="interProject" class="toccolours" style="display: none; clear: both; margin-top: 2em"><p id="sisterProjects" style="background-color: #efefef; color: black; font-weight: bold; margin: 0"><span>Altri progetti</span></p><ul title="Collegamenti verso gli altri progetti Wikimedia"> <li class="" title=""><span class="plainlinks" title="commons:Category:Indicolite"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Indicolite?uselang=it">Wikimedia Commons</a></span></li></ul></div> <ul><li><span typeof="mw:File"><a href="https://commons.wikimedia.org/wiki/?uselang=it" title="Collabora a Wikimedia Commons"><img alt="Collabora a Wikimedia Commons" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png" decoding="async" width="18" height="24" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/27px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/36px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span> <span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/?uselang=it">Wikimedia Commons</a></span> contiene immagini o altri file su <b><span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Indicolite?uselang=it">Indicolite</a></span></b></li></ul> <div class="mw-heading mw-heading2"><h2 id="Collegamenti_esterni">Collegamenti esterni</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Indicolite&veaction=edit&section=10" title="Modifica la sezione Collegamenti esterni" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Indicolite&action=edit&section=10" title="Edit section's source code: Collegamenti esterni"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="http://www.mindat.org/min-2027.html"><span style="font-style:italic;">Scheda del minerale su mindat.org</span></a>, su <span style="font-style:italic;">mindat.org</span>.</cite></li></ul> <div class="noprint" style="width:100%; padding: 3px 0; display: flex; flex-wrap: wrap; row-gap: 4px; column-gap: 8px; box-sizing: border-box;"><div style="flex-grow: 1"><style data-mw-deduplicate="TemplateStyles:r140555418">.mw-parser-output .itwiki-template-occhiello{width:100%;line-height:25px;border:1px solid #CCF;background-color:#F0EEFF;box-sizing:border-box}.mw-parser-output .itwiki-template-occhiello-progetto{background-color:#FAFAFA}@media screen{html.skin-theme-clientpref-night .mw-parser-output .itwiki-template-occhiello{background-color:#202122;border-color:#54595D}html.skin-theme-clientpref-night .mw-parser-output .itwiki-template-occhiello-progetto{background-color:#282929}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .itwiki-template-occhiello{background-color:#202122;border-color:#54595D}html.skin-theme-clientpref-os .mw-parser-output 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