{"id":3323,"date":"2017-04-28T11:35:00","date_gmt":"2017-04-28T09:35:00","guid":{"rendered":"http:\/\/agora.xtec.cat\/iesm-jmzafra\/?p=3323"},"modified":"2018-06-07T10:21:10","modified_gmt":"2018-06-07T08:21:10","slug":"ametista","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/blogs\/museu-de-geologia\/ametista\/","title":{"rendered":"AMETISTA"},"content":{"rendered":"

Nom<\/strong>
\nCatal\u00e0: Ametista<\/strong>
\nCastell\u00e0: Amatista
\nAngl\u00e8s: Amethyst
\nFranc\u00e8s: Am\u00e9thyse<\/p>\n

Imatges<\/strong><\/p>\n

\"GuerreroAm\u00c3\u00a9thyste.jpg\"<\/p>\n

\"Resultat<\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

Quin tipus i subtipus de roca i\/o mineral \u00e9s?<\/strong><\/p>\n

\u00c9s un mineral violeta fet de quars d\u2019origen magm\u00e0tic.
\nFormaci\u00f3 de la roca i\/o mineral:<\/strong>
\nL’Ametista s\u2019ha format a baixes temperatures. Se sol trobar a la superf\u00edcie de les roques, a l\u2019interior de les geodes.
\nAquest tipus de roques es troba a Brasil, i va ser originada fa 160 milions d\u2019anys.<\/p>\n

Composici\u00f3 qu\u00edmica:<\/strong>
\nL\u2019Ametista t\u00e9 aquest color a causa de la seva composici\u00f3 en di\u00f2xid de ferro. La seva f\u00f3rmula qu\u00edmica \u00e9s SiO2.<\/p>\n

Breu descripci\u00f3 (color, textura…):<\/strong>
\nL\u2019Ametista \u00e9s una roca cristal\u00b7lina i lluent de color violeta de diferents tonalitats. Aguanta molta calor, i si est\u00e0 sota 300 oC pot canviar el color del mineral a tonalitats grogues, ataronjades o verdes.
\nEl seu nom prov\u00e9 del grec (Amethystos), i antigament es deia que era un ant\u00eddot per l\u2019embriaguesa (si anaves borratxo). Segons l\u2019hor\u00f2scop, aquesta \u00e9s la pedra pel signe zodiacal de Peixos.<\/p>\n

Usos i\/o aplicacions:<\/strong>
\nAquesta roca \u00e9s majorit\u00e0riament utilitzada per guarnir amb joies, de fet, des de l\u2019antiguitat s\u2019ha utilitzat com a s\u00edmbol de riquesa i prosperitat.<\/p>\n

Lloc d’origen (Jaciments m\u00e9s importants):<\/strong>
\nMajorit\u00e0riament es troba a Brasil, encara que tamb\u00e9 est\u00e0 a Uruguai, Bol\u00edvia, Argentina, R\u00fassia,
\nZ\u00e0mbia, Nam\u00edbia, Madagascar, i alguns altres pa\u00efsos d\u2019\u00c0frica.<\/p>\n

Refer\u00e8ncia bibliogr\u00e0fica:<\/strong>
\nhttps:\/\/ca.wikipedia.org\/wiki\/Ametista
\nhttp:\/\/vivescortadaimport.com\/blog-tienda-minerales\/apartados\/la-amatista\/index.php
\nhttp:\/\/www.zapatajoyeros.com\/blog\/ca\/espanol-amatista\/<\/p>\n","protected":false},"excerpt":{"rendered":"

Nom Catal\u00e0: Ametista Castell\u00e0: Amatista Angl\u00e8s: Amethyst Franc\u00e8s: Am\u00e9thyse Imatges           Quin tipus i subtipus de roca i\/o mineral \u00e9s? \u00c9s un mineral violeta fet de quars d\u2019origen magm\u00e0tic. Formaci\u00f3 de la roca i\/o mineral: L’Ametista s\u2019ha format a baixes temperatures. Se sol trobar a la superf\u00edcie de les roques, a […]<\/p>\n","protected":false},"author":185,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[321],"tags":[353,319],"class_list":["post-3323","post","type-post","status-publish","format-standard","hentry","category-museu-de-geologia","tag-2b7","tag-minerals"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/3323","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/users\/185"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/comments?post=3323"}],"version-history":[{"count":3,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/3323\/revisions"}],"predecessor-version":[{"id":9914,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/3323\/revisions\/9914"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/media?parent=3323"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/categories?post=3323"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/tags?post=3323"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}