{"id":2920,"date":"2017-04-28T11:33:49","date_gmt":"2017-04-28T09:33:49","guid":{"rendered":"http:\/\/agora.xtec.cat\/iesm-jmzafra\/?p=2920"},"modified":"2017-04-28T11:33:49","modified_gmt":"2017-04-28T09:33:49","slug":"malaquita","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/general\/malaquita\/","title":{"rendered":"MALAQUITA"},"content":{"rendered":"

\"malaquita_bona_2a4\"<\/a><\/p>\n

NOM<\/strong><\/h6>\n

ca\u00a0<\/em>Malaquita
\nes\u00a0<\/em>Malaquita
\nen<\/em>\u00a0Malachite<\/p>\n

DESCRIPCI\u00d3<\/strong><\/h6>\n

La malaquita \u00e9s considerada com una pedra semi preciosa. \u00c9s un mineral que est\u00e0 dins del grup dels carbonats. La major part dels carbonats s\u00f3n insolubles en aigua i formen part de les roques, per aquest motiu la malaquita esi considerada dins dels carbonats.
\nEl nom “malaquita” es deriva del llat\u00ed malachites, que fa al\u00b7lusi\u00f3 al color verd que caracteritza aquest mineral. Sol formar-se en zones on es d\u00f3na el fenomen de l’oxidaci\u00f3 de sulfurs de coure que solen estar enclavats en roques calc\u00e0ries.
\nRegularment, juntament amb la malaquita es formen altres minerals com la cuprita o \u00f2xid de coure, l’atzurita, la limonita entre d’altres.
\nTamb\u00e9 es pot formar en masses botroidales, estalactites o crostes de feble coloraci\u00f3. Es formen amb una estructura fibrosa o en capes conc\u00e8ntriques, en comptades ocasions es forma com cristall.
\nLa malaquita es forma predominantment a la zona d’alteraci\u00f3 superficial dels jaciments de coure a causa de la precipitaci\u00f3 del compost a partir d’aig\u00fces riques en carbonat de calci i ions de coure, aquests \u00faltims derivats de l’alteraci\u00f3 i dissoluci\u00f3 de sulfurs i \u00f2xid de coure.<\/p>\n

Malaquita. Mineral del grup V (carbonats) segons la classificaci\u00f3 de Strunz, de f\u00f3rmula qu\u00edmica Cu2CO3 (OH) 2 (dihidr\u00f2xid de carbonat de coure (II)). Posseeix un 57,0% de coure. En l’antiguitat era utilitzada com a colorant, per\u00f2 avui en dia el seu \u00fas \u00e9s m\u00e9s aviat com a pedra semipreciosa.<\/p>\n

\"captura-de-pantalla-3\"<\/a><\/p>\n

Malaquita<\/em><\/p>\n

OBSERVACI\u00d3 AMB LUPA<\/strong><\/h6>\n

\"captura-de-pantalla-4\"<\/a><\/p>\n

Alumnes de 2nA observant la malaquita\u00a0<\/em><\/p>\n

\u00c8POCA GEOL\u00d2GICA<\/strong><\/h6>\n

No \u00e9s un f\u00f2ssil, llavors no podem explicar en quina \u00e8poca geol\u00f2gica ha \u201cviscut\u201d.<\/p>\n

\u00daS<\/strong><\/h6>\n

Pel seu color verd, que est\u00e0 relacionat amb la intel\u00b7lig\u00e8ncia, la malaquita ha estat una pedra molt valorada en la indument\u00e0ria de reis i nobles, aix\u00ed com en la decoraci\u00f3 de grans palaus.
\nNo obstant aix\u00f2, en l’actualitat t\u00e9 usos com:
\n– Pedra ornamental
\n– L\u00e0mines polides
\n– Fabricaci\u00f3 de taules
\n– Producci\u00f3 de pintures
\n– Bijuteria
\n– Ter\u00e0pia mineral
\n– Talism\u00e0
\n– Suprimeix s\u00edmptomes de l’embar\u00e0s com marejos i v\u00f2mit.
\n– Reducci\u00f3 de riscos d’hemorr\u00e0gia.
\n– C\u00e0rrega, per donar volum, textura, acabat i per reduir costos en la fabricaci\u00f3 de peces de resina poli\u00e8ster.<\/p>\n

LLOC D\u2019ORIGEN<\/strong><\/h6>\n

El lloc d\u2019origen de la Malaquita \u00e9s la mina Chuquicamata, que esta en Xile. Es una mina que pertany a la Corporaci\u00f3 del Coure (Codelco), una empresa xilena. Chuquicamata \u00e9s molt reconeguda per la seva extracci\u00f3 de coure. T\u00e9 grans dimensions, 4’3 km de llarg, 3km d’amplada i 800m de profunditat.
\nEl seu clima \u00e9s des\u00e8rtic. La temperatura m\u00ednima \u00e9s de 17,1 graus i la m\u00e0xima \u00e9s de 24,5 graus.
\nEls visitants que hi van poden anar al mirador que t\u00e9 el jaciment, tamb\u00e9 poden anar a veure la fosa del coure.<\/p>\n

MAPA<\/strong><\/h6>\n

\"captura-de-pantalla-5\"<\/a><\/p>\n

Chuquicamata, Xile<\/p>\n

PROCED\u00c8NCIA<\/strong><\/h6>\n

La malaquita la va donar en professor de Naturals, en Joan.<\/p>\n

REFER\u00c8NCIES BIBLIOGR\u00c0FIQUES<\/strong><\/h6>\n

Webs:<\/p>\n

http:\/\/www.asturnatura.com\/mineral\/malaquita\/1357.html (23\/01\/2017)
\nhttp:\/\/www.xtec.cat\/~fmas\/mine\/malaqui.htm (23\/01\/2017)
\nhttps:\/\/es.answers.yahoo.com\/question\/index?qid=20090503062021AAlwQwV (23\/01\/2017)
\nhttp:\/\/topminerales.com\/es\/12_propiedades-de-la-malaquita (23\/01\/2017)
\nhttps:\/\/www.quiminet.com\/articulos\/la-malaquita-caracteristicas-y-usos-2650526.htm (23\/01\/2017)<\/p>\n

http:\/\/www.visitchile.com\/es\/mina-de-chuquicamata\/ (24\/01\/2017)<\/p>\n

Gerard Armentero, Julie Villegas, Melisa Cochior<\/p>\n","protected":false},"excerpt":{"rendered":"

NOM ca\u00a0Malaquita es\u00a0Malaquita en\u00a0Malachite DESCRIPCI\u00d3 La malaquita \u00e9s considerada com una pedra semi preciosa. \u00c9s un mineral que est\u00e0 dins del grup dels carbonats. La major part dels carbonats s\u00f3n insolubles en aigua i formen part de les roques, per aquest motiu la malaquita esi considerada dins dels carbonats. El nom “malaquita” es deriva del […]<\/p>\n","protected":false},"author":102,"featured_media":0,"comment_status":"closed","ping_status":"open","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":[1,321],"tags":[324,319],"class_list":["post-2920","post","type-post","status-publish","format-standard","hentry","category-general","category-museu-de-geologia","tag-2a4","tag-minerals"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/2920","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\/102"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/comments?post=2920"}],"version-history":[{"count":3,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/2920\/revisions"}],"predecessor-version":[{"id":3671,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/2920\/revisions\/3671"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/media?parent=2920"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/categories?post=2920"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/tags?post=2920"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}