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Sistema cristal·lí cúbic - Viquipèdia, l'enciclopèdia lliure

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href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&amp;utm_medium=sidebar&amp;utm_campaign=C13_ca.wikipedia.org&amp;uselang=ca" class=""><span>Donatius</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=Especial:Crea_compte&amp;returnto=Sistema+cristal%C2%B7l%C3%AD+c%C3%BAbic" title="Us animem a crear un compte i iniciar una sessió, encara que no és obligatori" class=""><span>Crea un compte</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=Especial:Registre_i_entrada&amp;returnto=Sistema+cristal%C2%B7l%C3%AD+c%C3%BAbic" title="Us animem a registrar-vos, però no és obligatori [o]" accesskey="o" class=""><span>Inicia la sessió</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown 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</div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Pàgines per a editors no registrats <a href="/wiki/Ajuda:Introducci%C3%B3" aria-label="Vegeu més informació sobre l&#039;edició"><span>més informació</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Especial:Contribucions_pr%C3%B2pies" title="Una llista de les modificacions fetes des d&#039;aquesta adreça IP [y]" accesskey="y"><span>Contribucions</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Especial:Discussi%C3%B3_personal" title="Discussió sobre les edicions per aquesta adreça ip. [n]" accesskey="n"><span>Discussió per aquest IP</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"><!-- CentralNotice --></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="Lloc"> <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="Contingut" 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">Contingut</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">mou a la barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">amaga</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">Inici</div> </a> </li> <li id="toc-Forma_del_cristall" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Forma_del_cristall"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Forma del cristall</span> </div> </a> <ul id="toc-Forma_del_cristall-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Tipus" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Tipus"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Tipus</span> </div> </a> <ul id="toc-Tipus-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Referències" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Referències"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Referències</span> </div> </a> <ul id="toc-Referències-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Enllaços_externs" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Enllaços_externs"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Enllaços externs</span> </div> </a> <ul id="toc-Enllaços_externs-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="Contingut" 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="Commuta la taula de continguts." > <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">Commuta la taula de continguts.</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">Sistema cristal·lí cúbic</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="Vés a un article en una altra llengua. Disponible en 41 llengües" > <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-41" 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">41 llengües</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Kubiese_digpakking" title="Kubiese digpakking - afrikaans" lang="af" hreflang="af" data-title="Kubiese digpakking" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%86%D8%B8%D8%A7%D9%85_%D8%A8%D9%84%D9%88%D8%B1%D9%8A_%D9%85%D9%83%D8%B9%D8%A8" title="نظام بلوري مكعب - àrab" lang="ar" hreflang="ar" data-title="نظام بلوري مكعب" data-language-autonym="العربية" data-language-local-name="àrab" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Kubik_sinqoniya" title="Kubik sinqoniya - azerbaidjanès" lang="az" hreflang="az" data-title="Kubik sinqoniya" data-language-autonym="Azərbaycanca" data-language-local-name="azerbaidjanès" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9A%D1%83%D0%B1%D1%96%D1%87%D0%BD%D0%B0%D1%8F_%D1%81%D1%96%D0%BD%D0%B3%D0%BE%D0%BD%D1%96%D1%8F" title="Кубічная сінгонія - belarús" lang="be" hreflang="be" data-title="Кубічная сінгонія" data-language-autonym="Беларуская" data-language-local-name="belarús" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Kubi%C4%8Dni_kristalni_sistem" title="Kubični kristalni sistem - bosnià" lang="bs" hreflang="bs" data-title="Kubični kristalni sistem" data-language-autonym="Bosanski" data-language-local-name="bosnià" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Krychlov%C3%A1_soustava" title="Krychlová soustava - txec" lang="cs" hreflang="cs" data-title="Krychlová soustava" data-language-autonym="Čeština" data-language-local-name="txec" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Kubisk_rumcentreret_krystalstruktur" title="Kubisk rumcentreret krystalstruktur - danès" lang="da" hreflang="da" data-title="Kubisk rumcentreret krystalstruktur" data-language-autonym="Dansk" data-language-local-name="danès" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Kubisches_Kristallsystem" title="Kubisches Kristallsystem - alemany" lang="de" hreflang="de" data-title="Kubisches Kristallsystem" data-language-autonym="Deutsch" data-language-local-name="alemany" 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/Cubic_crystal_system" title="Cubic crystal system - anglès" lang="en" hreflang="en" data-title="Cubic crystal system" data-language-autonym="English" data-language-local-name="anglès" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Kuba_kristalsistemo" title="Kuba kristalsistemo - esperanto" lang="eo" hreflang="eo" data-title="Kuba kristalsistemo" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Sistema_cristalino_c%C3%BAbico" title="Sistema cristalino cúbico - espanyol" lang="es" hreflang="es" data-title="Sistema cristalino cúbico" data-language-autonym="Español" data-language-local-name="espanyol" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Kuubiline_s%C3%BCngoonia" title="Kuubiline süngoonia - estonià" lang="et" hreflang="et" data-title="Kuubiline süngoonia" data-language-autonym="Eesti" data-language-local-name="estonià" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Kristal-sistema_kubiko" title="Kristal-sistema kubiko - basc" lang="eu" hreflang="eu" data-title="Kristal-sistema kubiko" data-language-autonym="Euskara" data-language-local-name="basc" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AF%D8%B3%D8%AA%DA%AF%D8%A7%D9%87_%D8%A8%D9%84%D9%88%D8%B1%DB%8C_%D9%85%DA%A9%D8%B9%D8%A8%DB%8C" title="دستگاه بلوری مکعبی - persa" lang="fa" hreflang="fa" data-title="دستگاه بلوری مکعبی" data-language-autonym="فارسی" data-language-local-name="persa" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Syst%C3%A8me_cristallin_cubique" title="Système cristallin cubique - francès" lang="fr" hreflang="fr" data-title="Système cristallin cubique" data-language-autonym="Français" data-language-local-name="francès" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%94%D7%9E%D7%A2%D7%A8%D7%9B%D7%AA_%D7%94%D7%92%D7%91%D7%99%D7%A9%D7%99%D7%AA_%D7%94%D7%A7%D7%95%D7%91%D7%99%D7%99%D7%AA%D7%99%D7%AA" title="המערכת הגבישית הקובייתית - hebreu" lang="he" hreflang="he" data-title="המערכת הגבישית הקובייתית" data-language-autonym="עברית" data-language-local-name="hebreu" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Kubi%C4%8Dni_kristalni_sustav" title="Kubični kristalni sustav - croat" lang="hr" hreflang="hr" data-title="Kubični kristalni sustav" data-language-autonym="Hrvatski" data-language-local-name="croat" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%BD%D5%B8%D6%80%D5%A1%D5%B6%D5%A1%D6%80%D5%A4%D5%A1%D5%B5%D5%AB%D5%B6_%D5%B0%D5%A1%D5%B4%D5%A1%D5%AF%D5%A1%D6%80%D5%A3" title="Խորանարդային համակարգ - armeni" lang="hy" hreflang="hy" data-title="Խորանարդային համակարգ" data-language-autonym="Հայերեն" data-language-local-name="armeni" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Sistem_kristal_kubik" title="Sistem kristal kubik - indonesi" lang="id" hreflang="id" data-title="Sistem kristal kubik" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesi" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Sistema_cubico" title="Sistema cubico - italià" lang="it" hreflang="it" data-title="Sistema cubico" data-language-autonym="Italiano" data-language-local-name="italià" 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/%E7%AB%8B%E6%96%B9%E6%99%B6%E7%B3%BB" title="立方晶系 - japonès" lang="ja" hreflang="ja" data-title="立方晶系" data-language-autonym="日本語" data-language-local-name="japonès" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%9E%85%EB%B0%A9%EC%A0%95%EA%B3%84" title="입방정계 - coreà" lang="ko" hreflang="ko" data-title="입방정계" data-language-autonym="한국어" data-language-local-name="coreà" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Kubisk%C4%81_singonija" title="Kubiskā singonija - letó" lang="lv" hreflang="lv" data-title="Kubiskā singonija" data-language-autonym="Latviešu" data-language-local-name="letó" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9A%D0%BE%D1%86%D0%BA%D0%B5%D1%81%D1%82_%D0%BA%D1%80%D0%B8%D1%81%D1%82%D0%B0%D0%BB%D0%B5%D0%BD_%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC" title="Коцкест кристален систем - macedoni" lang="mk" hreflang="mk" data-title="Коцкест кристален систем" data-language-autonym="Македонски" data-language-local-name="macedoni" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Kubisch_kristalstelsel" title="Kubisch kristalstelsel - neerlandès" lang="nl" hreflang="nl" data-title="Kubisch kristalstelsel" data-language-autonym="Nederlands" data-language-local-name="neerlandès" 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/Uk%C5%82ad_regularny" title="Układ regularny - polonès" lang="pl" hreflang="pl" data-title="Układ regularny" data-language-autonym="Polski" data-language-local-name="polonès" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Sistema_cristalino_c%C3%BAbico" title="Sistema cristalino cúbico - portuguès" lang="pt" hreflang="pt" data-title="Sistema cristalino cúbico" data-language-autonym="Português" data-language-local-name="portuguès" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Sistem_cristalin_cubic" title="Sistem cristalin cubic - romanès" lang="ro" hreflang="ro" data-title="Sistem cristalin cubic" data-language-autonym="Română" data-language-local-name="romanès" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9A%D1%83%D0%B1%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B0%D1%8F_%D1%81%D0%B8%D0%BD%D0%B3%D0%BE%D0%BD%D0%B8%D1%8F" title="Кубическая сингония - rus" lang="ru" hreflang="ru" data-title="Кубическая сингония" data-language-autonym="Русский" data-language-local-name="rus" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Teseralna_kristalna_sistema" title="Teseralna kristalna sistema - serbocroat" lang="sh" hreflang="sh" data-title="Teseralna kristalna sistema" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbocroat" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Cubic_crystal_system" title="Cubic crystal system - Simple English" lang="en-simple" hreflang="en-simple" data-title="Cubic crystal system" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Kubick%C3%A1_s%C3%BAstava" title="Kubická sústava - eslovac" lang="sk" hreflang="sk" data-title="Kubická sústava" data-language-autonym="Slovenčina" data-language-local-name="eslovac" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Kubi%C4%8Dni_kristalni_sistem" title="Kubični kristalni sistem - eslovè" lang="sl" hreflang="sl" data-title="Kubični kristalni sistem" data-language-autonym="Slovenščina" data-language-local-name="eslovè" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A2%D0%B5%D1%81%D0%B5%D1%80%D0%B0%D0%BB%D0%BD%D0%B0_%D0%BA%D1%80%D0%B8%D1%81%D1%82%D0%B0%D0%BB%D0%BD%D0%B0_%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D0%B0" title="Тесерална кристална система - serbi" lang="sr" hreflang="sr" data-title="Тесерална кристална система" data-language-autonym="Српски / srpski" data-language-local-name="serbi" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Kubiska_kristallsystemet" title="Kubiska kristallsystemet - suec" lang="sv" hreflang="sv" data-title="Kubiska kristallsystemet" data-language-autonym="Svenska" data-language-local-name="suec" class="interlanguage-link-target"><span>Svenska</span></a></li><li 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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">Aparença</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">mou a la barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">amaga</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">De la Viquipèdia, l&#039;enciclopèdia lliure</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="ca" dir="ltr"><figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Fcc_lattice_4.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Fcc_lattice_4.jpg/220px-Fcc_lattice_4.jpg" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Fcc_lattice_4.jpg/330px-Fcc_lattice_4.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Fcc_lattice_4.jpg/440px-Fcc_lattice_4.jpg 2x" data-file-width="640" data-file-height="480" /></a><figcaption>Representació amb boles d'un sistema isomètric.</figcaption></figure> <p>El <b> sistema cristal·lí cúbic</b>, també anomenat <b> isomètric</b>, és un dels set <a href="/wiki/Sistema_cristal%C2%B7l%C3%AD" title="Sistema cristal·lí">sistemes cristal·lins</a> existents en <a href="/wiki/Cristal%C2%B7lografia" title="Cristal·lografia">cristal·lografia</a>. És comú en molts minerals, com per exemple en la <a href="/wiki/Pirita" title="Pirita">pirita</a> o la <a href="/wiki/Galena" title="Galena">galena</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Forma_del_cristall">Forma del cristall</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sistema_cristal%C2%B7l%C3%AD_c%C3%BAbic&amp;action=edit&amp;section=1" title="Modifica la secció: Forma del cristall"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Es caracteritza pel fet que la <a href="/wiki/Cel%C2%B7la_unitat" class="mw-redirect" title="Cel·la unitat">cel·la unitat</a> de la xarxa cristal·lina té la forma geomètrica de <a href="/wiki/Cub" title="Cub">cub</a>, ja que té els tres angles rectes i les tres arestes de la cel·la iguals. La característiques que el distingeix dels altres sis sistemes cristal·lins és la presència de quatre <a href="/wiki/Eix_de_simetria" class="mw-redirect" title="Eix de simetria">eixos de simetria</a> ternaris. </p> <div class="mw-heading mw-heading2"><h2 id="Tipus">Tipus</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sistema_cristal%C2%B7l%C3%AD_c%C3%BAbic&amp;action=edit&amp;section=2" title="Modifica la secció: Tipus"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Existeixen tres varietats principals, entre d'altres, d'aquest tipus de cristalls: </p> <ul class="gallery mw-gallery-traditional"> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/Fitxer:Cubic.svg" class="mw-file-description" title="Cúbic simple"><img alt="Cúbic simple" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/55/Cubic.svg/103px-Cubic.svg.png" decoding="async" width="103" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/55/Cubic.svg/154px-Cubic.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/55/Cubic.svg/206px-Cubic.svg.png 2x" data-file-width="109" data-file-height="127" /></a></span></div> <div class="gallerytext">Cúbic simple</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/Fitxer:Cubic-body-centered.svg" class="mw-file-description" title="Cúbic centrat"><img alt="Cúbic centrat" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a3/Cubic-body-centered.svg/103px-Cubic-body-centered.svg.png" decoding="async" width="103" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a3/Cubic-body-centered.svg/154px-Cubic-body-centered.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a3/Cubic-body-centered.svg/206px-Cubic-body-centered.svg.png 2x" data-file-width="109" data-file-height="127" /></a></span></div> <div class="gallerytext">Cúbic centrat</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/Fitxer:Cubic-face-centered.svg" class="mw-file-description" title="Cúbic centrat en les cares"><img alt="Cúbic centrat en les cares" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Cubic-face-centered.svg/103px-Cubic-face-centered.svg.png" decoding="async" width="103" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Cubic-face-centered.svg/155px-Cubic-face-centered.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Cubic-face-centered.svg/206px-Cubic-face-centered.svg.png 2x" data-file-width="862" data-file-height="1002" /></a></span></div> <div class="gallerytext">Cúbic centrat en les cares</div> </li> </ul> <p>Els cristalls d'aquest sistema es classifiquen en les cinc classes següents: </p> <ul><li>Tetratoidal<sup id="cite_ref-Eringen1976_1-0" class="reference"><a href="#cite_note-Eringen1976-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup></li> <li>Diploidal</li> <li>Hextetrahedral</li> <li>Gyroidal</li> <li>Hexoctahedral</li></ul> <div class="mw-heading mw-heading2"><h2 id="Referències"><span id="Refer.C3.A8ncies"></span>Referències</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sistema_cristal%C2%B7l%C3%AD_c%C3%BAbic&amp;action=edit&amp;section=3" title="Modifica la secció: Referències"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="reflist &#123;&#123;#if: &#124; references-column-count references-column-count-&#123;&#123;&#123;col&#125;&#125;&#125;" style="list-style-type: decimal;"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-Eringen1976-1"><span class="mw-cite-backlink"><a href="#cite_ref-Eringen1976_1-0">↑</a></span> <span class="reference-text"><span class="citation book" style="font-style:normal">A. Cemal Eringen. <a rel="nofollow" class="external text" href="http://books.google.cat/books?id=MaPvAAAAMAAJ&amp;q=Tetratoidal&amp;dq=Tetratoidal&amp;hl=ca&amp;ei=eRwhTvqsOpHzsgbQ16ChDA&amp;sa=X&amp;oi=book_result&amp;ct=result&amp;resnum=1&amp;sqi=2&amp;ved=0CCoQ6AEwAA"><i>Continuum Physics: Continuum mechanics of single-substance bodies</i></a>.&#32; Academic Press,&#32;1976&#32;[Consulta: 16 juliol 2011].</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Continuum+Physics%3A+Continuum+mechanics+of+single-substance+bodies&amp;rft.au=A.+Cemal+Eringen&amp;rft.date=1976&amp;rft.pub=Academic+Press&amp;rft_id=http%3A%2F%2Fbooks.google.cat%2Fbooks%3Fid%3DMaPvAAAAMAAJ%26q%3DTetratoidal%26dq%3DTetratoidal%26hl%3Dca%26ei%3DeRwhTvqsOpHzsgbQ16ChDA%26sa%3DX%26oi%3Dbook_result%26ct%3Dresult%26resnum%3D1%26sqi%3D2%26ved%3D0CCoQ6AEwAA"><span style="display: none;">&#160;</span></span></span> </li> </ol></div></div> <ul><li><a rel="nofollow" class="external text" href="http://www.rockhounds.com/rockshop/xtal/part3.html">Introducció a la cristal·lografia: sistema isomètric</a>.</li> <li><a rel="nofollow" class="external text" href="http://webmineral.com/crystal/Isometric.shtml">Sistema cúbic</a> en <i> webmineral.com </i>.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Enllaços_externs"><span id="Enlla.C3.A7os_externs"></span>Enllaços externs</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sistema_cristal%C2%B7l%C3%AD_c%C3%BAbic&amp;action=edit&amp;section=4" title="Modifica la secció: Enllaços externs"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r33663753">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:#f9f9f9;display:flow-root}.mw-parser-output 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navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div class="plainlinks hlist navbar mini"><ul><li class="nv-view"><span typeof="mw:File"><a href="/wiki/Plantilla:Sistemes_cristal%C2%B7lins" title="Plantilla:Sistemes cristal·lins"><img alt="Vegeu aquesta plantilla" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/Commons-emblem-notice.svg/18px-Commons-emblem-notice.svg.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/Commons-emblem-notice.svg/27px-Commons-emblem-notice.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/28/Commons-emblem-notice.svg/36px-Commons-emblem-notice.svg.png 2x" data-file-width="48" data-file-height="48" /></a></span></li></ul></div><div id="Els_7_sistemes_cristal·lins" style="font-size:114%;margin:0 4em">Els 7 <a href="/wiki/Sistema_cristal%C2%B7l%C3%AD" title="Sistema cristal·lí">sistemes cristal·lins</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/Sistema_tricl%C3%ADnic" title="Sistema triclínic">triclínic</a> <span typeof="mw:File"><a href="/wiki/Fitxer:Triclinic.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/17/Triclinic.svg/30px-Triclinic.svg.png" decoding="async" width="30" height="35" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/17/Triclinic.svg/45px-Triclinic.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/17/Triclinic.svg/60px-Triclinic.svg.png 2x" data-file-width="129" data-file-height="149" /></a></span></li> <li><a href="/wiki/Sistema_monocl%C3%ADnic" title="Sistema monoclínic">monoclínic</a> <span typeof="mw:File"><a href="/wiki/Fitxer:Monoclinic.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Monoclinic.svg/30px-Monoclinic.svg.png" decoding="async" width="30" height="38" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Monoclinic.svg/45px-Monoclinic.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Monoclinic.svg/60px-Monoclinic.svg.png 2x" data-file-width="114" data-file-height="143" /></a></span></li> <li><a href="/wiki/Sistema_ortor%C3%B2mbic" title="Sistema ortoròmbic">ortoròmbic</a> <span typeof="mw:File"><a href="/wiki/Fitxer:Orthorhombic.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Orthorhombic.svg/30px-Orthorhombic.svg.png" decoding="async" width="30" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Orthorhombic.svg/45px-Orthorhombic.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Orthorhombic.svg/60px-Orthorhombic.svg.png 2x" data-file-width="108" data-file-height="142" /></a></span></li> <li><a href="/wiki/Sistema_tetragonal" title="Sistema tetragonal">tetragonal</a> <span typeof="mw:File"><a href="/wiki/Fitxer:Tetragonal.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0a/Tetragonal.svg/30px-Tetragonal.svg.png" decoding="async" width="30" height="46" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0a/Tetragonal.svg/45px-Tetragonal.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0a/Tetragonal.svg/60px-Tetragonal.svg.png 2x" data-file-width="108" data-file-height="165" /></a></span></li> <li><a href="/wiki/Sistema_trigonal" title="Sistema trigonal">trigonal</a> <span typeof="mw:File"><a href="/wiki/Fitxer:Rhombohedral.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/03/Rhombohedral.svg/30px-Rhombohedral.svg.png" decoding="async" width="30" height="30" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/03/Rhombohedral.svg/45px-Rhombohedral.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/03/Rhombohedral.svg/60px-Rhombohedral.svg.png 2x" data-file-width="139" data-file-height="141" /></a></span></li> <li><a href="/wiki/Sistema_hexagonal" title="Sistema hexagonal">hexagonal</a> <span typeof="mw:File"><a href="/wiki/Fitxer:Hexagonal_lattice.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f6/Hexagonal_lattice.svg/30px-Hexagonal_lattice.svg.png" decoding="async" width="30" height="35" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f6/Hexagonal_lattice.svg/45px-Hexagonal_lattice.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f6/Hexagonal_lattice.svg/60px-Hexagonal_lattice.svg.png 2x" data-file-width="160" data-file-height="186" /></a></span></li> <li><a class="mw-selflink selflink">cúbic</a> (isomètric) <span typeof="mw:File"><a href="/wiki/Fitxer:Cubic.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/55/Cubic.svg/30px-Cubic.svg.png" decoding="async" width="30" height="35" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/55/Cubic.svg/45px-Cubic.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/55/Cubic.svg/60px-Cubic.svg.png 2x" data-file-width="109" data-file-height="127" /></a></span></li></ul> </div></td></tr></tbody></table></div> <!-- NewPP limit report Parsed by mw‐web.codfw.main‐6b7f745dd4‐hxktd Cached time: 20241125115631 Cache expiry: 2592000 Reduced expiry: false Complications: [show‐toc] CPU time usage: 0.098 seconds Real time usage: 0.243 seconds Preprocessor visited node count: 464/1000000 Post‐expand include size: 8630/2097152 bytes Template argument size: 1270/2097152 bytes Highest expansion depth: 12/100 Expensive parser function count: 0/500 Unstrip recursion depth: 0/20 Unstrip 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