{"id":1628,"date":"2020-10-19T17:46:15","date_gmt":"2020-10-19T20:46:15","guid":{"rendered":"https:\/\/wp.ufpel.edu.br\/museudesolosrochaseminerais\/?page_id=1628"},"modified":"2021-02-03T16:31:26","modified_gmt":"2021-02-03T19:31:26","slug":"feldspato","status":"publish","type":"page","link":"https:\/\/wp.ufpel.edu.br\/museudesolosrochaseminerais\/feldspato\/","title":{"rendered":"Feldspato"},"content":{"rendered":"<div id=\"pl-1628\"  class=\"panel-layout\" ><div id=\"pg-1628-0\"  class=\"panel-grid panel-no-style\" ><div id=\"pgc-1628-0-0\"  class=\"panel-grid-cell\" ><div id=\"panel-1628-0-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"0\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<p><strong><span style=\"font-size: 14pt\">Defini\u00e7\u00e3o<\/span>:\u00a0<\/strong>O nome feldspato vem do alem\u00e3o <strong>feld = campo<\/strong> <strong>+ spath = pedra<\/strong> e refere-se a um grupo de minerais de aluminossilicato<br \/>\ndo tipo AB4O8 ( A=Ca, Na, K e B=Al, Si), com uma rela\u00e7\u00e3o de Si:Al que variam de 3: 1 a 1: 1.\u00a0 Ocorre em todos os principais tipos de rochas, mas principalmente nas \u00edgneas, o que torna bastante dif\u00edcil a quantifica\u00e7\u00e3o de suas reservas.O feldspato \u00e9 dividido em dois grupos: o feldspato alcalino e o feldspato plagiocl\u00e1sio. Os feldspatos alcalinos incluem<br \/>\nortocl\u00e1sio, microclina, sanidina, anortocl\u00e1sio e os de duas fases misturadas entre si, chamadas de pertitas. O feldspato<br \/>\nplagiocl\u00e1sio inclui membros da s\u00e9rie da solu\u00e7\u00e3o solida de albita-anortita.<\/p>\n<p><strong><span style=\"font-size: 14pt\">Cor<\/span>:<\/strong> branco, cinza, r\u00f3seo;<\/p>\n<p><span style=\"font-size: 14pt\"><strong>Textura: <\/strong><\/span>dureza - 6 a 6,5 (escala Mohs);<\/p>\n<p>- sistema de cristaliza\u00e7\u00e3o - monocl\u00ednico, tricl\u00ednico;<br \/>\n- aspecto \u00f3tico - transl\u00facido e transparente (menos frequente);<br \/>\n- clivagem - perfeita em duas dire\u00e7\u00f5es formando \u00e2ngulos de 90\u00baC ou pr\u00f3ximo deste valor.<\/p>\n<p><span style=\"font-size: 14pt\"><strong>Aplica\u00e7\u00e3o: <\/strong><span style=\"font-size: 12pt\">Os feldspatos formam um dos mais importantes grupos <\/span><span style=\"font-size: 12pt\">de minerais, estando presentes em cerca de 60% da crosta<\/span><br \/>\n<span style=\"font-size: 12pt\">terrestre, podendo ser encontrados em quase todas as rochas <\/span><span style=\"font-size: 12pt\">eruptivas e metam\u00f3rficas, assim como em algumas rochas <\/span><span style=\"font-size: 12pt\">sedimentares. Pertencem ao grupo dos aluminossilicatos de <\/span><span style=\"font-size: 12pt\">pot\u00e1ssio, s\u00f3dio, c\u00e1lcio e mais raramente b\u00e1rio, sendo que o <\/span><span style=\"font-size: 12pt\">primeiro tem grande aplica\u00e7\u00e3o na ind\u00fastria cer\u00e2mica, <\/span><span style=\"font-size: 12pt\">particularmente na produ\u00e7\u00e3o de pisos, revestimentos e <\/span><span style=\"font-size: 12pt\">porcelanas, al\u00e9m de usos em vidros, esmaltes, polidores,<\/span><br \/>\n<span style=\"font-size: 12pt\">sab\u00e3o, pr\u00f3tese dent\u00e1ria, constru\u00e7\u00e3o civil e sinaliza\u00e7\u00e3o de <\/span><span style=\"font-size: 12pt\">estradas.<\/span><\/span><\/p>\n<p style=\"text-align: right\"><span style=\"font-size: 10pt\">Fonte: H. L. Lira*, G. A. Neves ,Feldspatos: conceitos, estrutura cristalina, propriedades f\u00edsicas, origem<br \/>\ne ocorr\u00eancias, aplica\u00e7\u00f5es, reservas e produ\u00e7\u00e3o ,Revista Eletr\u00f4nica de Materiais e Processos, v.8.3 (2013) 110 \u2013117.<\/span><\/p>\n<p>&nbsp;<\/p>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-1 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 33%;\n\t\t\t}\n\t\t\t#gallery-1 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-1' class='gallery galleryid-1628 gallery-columns-3 gallery-size-thumbnail'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wp.ufpel.edu.br\/museudesolosrochaseminerais\/feldspato\/feldspato-1\/#main'><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" src=\"https:\/\/wp.ufpel.edu.br\/museudesolosrochaseminerais\/files\/2021\/01\/FELDSPATO-1-200x200.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-2051\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-2051'>\n\t\t\t\tCole\u00e7\u00e3o: Departamento de Solos Faem- UfpelLocal: Encruzilhada- rs\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wp.ufpel.edu.br\/museudesolosrochaseminerais\/feldspato\/feldspato-2\/#main'><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" src=\"https:\/\/wp.ufpel.edu.br\/museudesolosrochaseminerais\/files\/2021\/01\/FELDSPATO-2-200x200.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-2052\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-2052'>\n\t\t\t\tCole\u00e7\u00e3o: Departamento de Solos Faem- UfpelLocal: Encruzilhada- rs\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wp.ufpel.edu.br\/museudesolosrochaseminerais\/feldspato\/feldspato-3\/#main'><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" src=\"https:\/\/wp.ufpel.edu.br\/museudesolosrochaseminerais\/files\/2021\/01\/FELDSPATO-3-200x200.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-2053\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-2053'>\n\t\t\t\tCole\u00e7\u00e3o: Departamento de Solos Faem- UfpelLocal: Encruzilhada- rs\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wp.ufpel.edu.br\/museudesolosrochaseminerais\/feldspato\/feldspato-4\/#main'><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" src=\"https:\/\/wp.ufpel.edu.br\/museudesolosrochaseminerais\/files\/2021\/01\/FELDSPATO-200x200.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-2054\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-2054'>\n\t\t\t\tCole\u00e7\u00e3o: Departamento de Solos Faem- UfpelLocal: Encruzilhada- rs\n\t\t\t\t<\/dd><\/dl>\n\t\t\t<br style='clear: both' \/>\n\t\t<\/div>\n\n<p style=\"text-align: center\"><a href=\"https:\/\/wp.ufpel.edu.br\/museudesolosrochaseminerais\/colecaominerais\/\">Voltar<\/a><\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Defini\u00e7\u00e3o:\u00a0O nome feldspato vem do alem\u00e3o feld = campo + spath = pedra e refere-se a um grupo de minerais de aluminossilicato do tipo AB4O8 ( A=Ca, Na, K e B=Al, Si), com uma rela\u00e7\u00e3o de Si:Al que variam de 3: 1 a 1: 1.\u00a0 Ocorre em todos os principais tipos de rochas, mas principalmente [&hellip;]<\/p>\n","protected":false},"author":1048,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1628","page","type-page","status-publish","hentry","post"],"_links":{"self":[{"href":"https:\/\/wp.ufpel.edu.br\/museudesolosrochaseminerais\/wp-json\/wp\/v2\/pages\/1628","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.ufpel.edu.br\/museudesolosrochaseminerais\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wp.ufpel.edu.br\/museudesolosrochaseminerais\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wp.ufpel.edu.br\/museudesolosrochaseminerais\/wp-json\/wp\/v2\/users\/1048"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.ufpel.edu.br\/museudesolosrochaseminerais\/wp-json\/wp\/v2\/comments?post=1628"}],"version-history":[{"count":6,"href":"https:\/\/wp.ufpel.edu.br\/museudesolosrochaseminerais\/wp-json\/wp\/v2\/pages\/1628\/revisions"}],"predecessor-version":[{"id":2127,"href":"https:\/\/wp.ufpel.edu.br\/museudesolosrochaseminerais\/wp-json\/wp\/v2\/pages\/1628\/revisions\/2127"}],"wp:attachment":[{"href":"https:\/\/wp.ufpel.edu.br\/museudesolosrochaseminerais\/wp-json\/wp\/v2\/media?parent=1628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}