{"id":1994,"date":"2025-09-02T12:54:45","date_gmt":"2025-09-02T15:54:45","guid":{"rendered":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/?p=1994"},"modified":"2025-09-02T12:54:46","modified_gmt":"2025-09-02T15:54:46","slug":"cromita-chromite","status":"publish","type":"post","link":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/","title":{"rendered":"Cromita (Chromite)"},"content":{"rendered":"\n<p class=\"has-black-color has-text-color has-medium-font-size\">A cromita (FeCr\u2082O\u2084) \u00e9 um \u00f3xido do grupo dos espin\u00e9lios que cristaliza no sistema c\u00fabico, formando raros cristais octa\u00e9dricos, mas ocorrendo mais comumente em agregados granulares, maci\u00e7os compactos ou disseminados em rochas m\u00e1ficas e ultram\u00e1ficas. Apresenta cor preta a marrom-escura, brilho met\u00e1lico a submet\u00e1lico, dureza 5,5\u20136, densidade relativa entre 4,5 e 4,8, fratura irregular a subconchoidal e aus\u00eancia de clivagem. \u00c9 mineral acess\u00f3rio t\u00edpico de peridotitos, dunitos e cromititos, formado por cristaliza\u00e7\u00e3o fracionada magm\u00e1tica, al\u00e9m de ocorrer em dep\u00f3sitos aluvionares devido \u00e0 alta densidade. Constitui o principal min\u00e9rio de cromo, essencial na produ\u00e7\u00e3o de a\u00e7os inoxid\u00e1veis, ligas resistentes ao calor e \u00e0 corros\u00e3o, al\u00e9m de refrat\u00e1rios, pigmentos e sais usados na ind\u00fastria qu\u00edmica, como no curtimento de couro. N\u00e3o tem uso gemol\u00f3gico, embora possa aparecer associada a minerais preciosos, como a esmeralda. Importantes dep\u00f3sitos encontram-se no Brasil (Bahia, Goi\u00e1s, Cear\u00e1), \u00c1frica do Sul (Complexo Bushveld, maior produtor mundial), Turquia, \u00cdndia (Orissa), R\u00fassia (Montes Urais), al\u00e9m das Filipinas e Zimb\u00e1bue.<\/p>\n\n\n\n<div class=\"minerais-content\">\n<style>\n  \/* Quadradinhos na cor #9c5932 *\/\n  .minerais-content ul.custom-square {\n    list-style-type: none;\n    padding-left: 4em;\n  }\n  .minerais-content ul.custom-square li {\n    position: relative;\n    color: black;\n    margin-bottom: 0.3em;\n  }\n  .minerais-content ul.custom-square li::before {\n    content: \"\u25a0\";\n    color: #9c5932;\n    position: absolute;\n    left: -2.5em;\n    font-size: 1em;\n    top: 0;\n  }\n  \/* Setinha \u25ba antes dos t\u00edtulos *\/\n  .minerais-content .with-arrow::before {\n    content: \"\u25ba\";\n    color: #9c5932;\n    margin-right: 0.4em;\n  }\n  \/* Texto preto e tamanhos *\/\n  .minerais-content p,\n  .minerais-content span,\n  .minerais-content strong,\n  .minerais-content ul,\n  .minerais-content li,\n  .minerais-content td {\n    color: black !important;\n    font-size: 0.95em;\n  }\n  \/* Tabela com espa\u00e7amento interno m\u00ednimo e bordas #9c5932 *\/\n  .minerais-content table.property-table {\n    width: 100%;\n    border-collapse: collapse;\n    margin-bottom: 2em;\n    border: 1.5px solid #9c5932;\n  }\n  .minerais-content table.property-table td {\n    vertical-align: middle;\n    padding: 0.05em 0.1em;\n    text-align: justify;\n    border: 1px solid #9c5932;\n  }\n  .minerais-content table.property-table td:first-child {\n    font-weight: bold;\n    white-space: nowrap;\n    color: black;\n    position: relative;\n    text-align: left;\n  }\n  .minerais-content table.property-table \ntd:first-child::before {\n    content: \"\u25ba\";\n    color: #9c5932;\n    margin-right: 0.4em;\n  }\n  .minerais-content hr.custom-divider {\n    border: none;\n    border-top: 3px solid #9c5932;\n    margin: 2em 0;\n  }\n<\/style>\n\n\n\n<hr class=\"custom-divider\">\n\n<table class=\"property-table\">\n  <tr>\n    <td>Classe<\/td>\n    <td>\n      <ul class=\"custom-square\">\n        <li>\u00d3xidos<\/li>\n      <\/ul>\n    <\/td>\n  <\/tr>\n  <tr>\n    <td>Grupo<\/td>\n    <td>\n      <ul class=\"custom-square\">\n        <li>Espin\u00e9lio<\/li>\n      <\/ul>\n    <\/td>\n  <\/tr>\n  <tr>\n    <td>Composi\u00e7\u00e3o Qu\u00edmica<\/td>\n    <td>\n      <ul class=\"custom-square\">\n        <li>FeCr\u2082O\u2084<br>\n          <span style=\"font-size: 0.9em;\">(\u00f3xido de ferro (II) e cromo (III))<\/span>\n        <\/li>\n      <\/ul>\n    <\/td>\n  <\/tr>\n  <tr>\n    <td>Sistema Cristalino<\/td>\n    <td>\n      <ul class=\"custom-square\">\n        <li>C\u00fabico (isom\u00e9trico)<\/li>\n      <\/ul>\n    <\/td>\n  <\/tr>\n  <tr>\n    <td>H\u00e1bito<\/td>\n    <td>\n      <ul class=\"custom-square\">\n        <li>Cristais octa\u00e9dricos<\/li>\n        <li>Mais comumente em agregados granulares, maci\u00e7os compactos ou disseminados em rochas m\u00e1ficas e ultram\u00e1ficas<\/li>\n      <\/ul>\n    <\/td>\n  <\/tr>\n  <tr>\n    <td>Cor<\/td>\n    <td>\n      <ul class=\"custom-square\">\n        <li>Preto a marrom-escuro<\/li>\n      <\/ul>\n    <\/td>\n  <\/tr>\n  <tr>\n    <td>Brilho<\/td>\n    <td>\n      <ul class=\"custom-square\">\n        <li>Met\u00e1lico a submet\u00e1lico<\/li>\n      <\/ul>\n    <\/td>\n  <\/tr>\n  <tr>\n    <td>Dureza (Mohs)<\/td>\n    <td>\n      <ul class=\"custom-square\">\n        <li>5,5 \u2013 6<\/li>\n      <\/ul>\n    <\/td>\n  <\/tr>\n  <tr>\n    <td>Densidade Relativa<\/td>\n    <td>\n      <ul class=\"custom-square\">\n        <li>4,5 \u2013 4,8<\/li>\n      <\/ul>\n    <\/td>\n  <\/tr>\n  <tr>\n    <td>Clivagem<\/td>\n    <td>\n      <ul class=\"custom-square\">\n        <li>Ausente<\/li>\n      <\/ul>\n    <\/td>\n  <\/tr>\n  <tr>\n    <td>Fratura<\/td>\n    <td>\n      <ul class=\"custom-square\">\n        <li>Irregular a subconchoidal<\/li>\n      <\/ul>\n    <\/td>\n  <\/tr>\n<\/table>\n\n<hr class=\"custom-divider\">\n\n<p style=\"margin-bottom: 1.3em;\">\n  <strong class=\"with-arrow\" style=\"font-size: 1.1em; display: inline;\">Origem<\/strong>\n  <span>\n    Mineral acess\u00f3rio t\u00edpico de rochas m\u00e1ficas e ultram\u00e1ficas (como peridotitos, dunitos e cromititos), formado por processos magm\u00e1ticos de cristaliza\u00e7\u00e3o fracionada. Tamb\u00e9m ocorre em dep\u00f3sitos secund\u00e1rios aluvionares devido \u00e0 sua alta densidade e resist\u00eancia.\n  <\/span>\n<\/p>\n\n<p class=\"with-arrow\" style=\"margin-bottom: 0.8em; font-size: 1.1em; font-weight: bold; display: block;\">Usos<\/p>\n<ul class=\"custom-square\" style=\"line-height: 1.8;\">\n  <li><strong>Industrial<\/strong> \u2013 Principal min\u00e9rio de cromo, utilizado na produ\u00e7\u00e3o de a\u00e7os inoxid\u00e1veis, ligas met\u00e1licas resistentes ao calor e \u00e0 corros\u00e3o. Tamb\u00e9m empregado na fabrica\u00e7\u00e3o de refrat\u00e1rios e pigmentos.<\/li>\n  <li><strong>Cient\u00edfico<\/strong> \u2013 Importante em estudos de petrologia de rochas ultram\u00e1ficas e metalog\u00eanese associada a intrus\u00f5es m\u00e1ficas.<\/li>\n  <li><strong>Gemol\u00f3gico<\/strong> \u2013 N\u00e3o utilizada como gema, mas pode ocorrer associada a minerais gemol\u00f3gicos como a esmeralda.<\/li>\n  <li><strong>Outros<\/strong> \u2013 Fonte de cromo para a ind\u00fastria qu\u00edmica (ex.: sais de cromo, curtimento de couro).<\/li>\n<\/ul>\n\n<p class=\"with-arrow\" style=\"margin-bottom: 0.8em; font-size: 1.1em; font-weight: bold; display: block;\">Localiza\u00e7\u00f5es T\u00edpicas<\/p>\n<ul class=\"custom-square\" style=\"line-height: 1.8;\">\n  <li><strong>Brasil<\/strong> \u2013 Bahia (Serra de Jacobina), Goi\u00e1s, Cear\u00e1<\/li>\n  <li><strong>\u00c1frica do Sul<\/strong> \u2013 Complexo Bushveld (maior produtor mundial)<\/li>\n  <li><strong>Turquia<\/strong> \u2013 Dep\u00f3sitos cromit\u00edferos de peridotitos<\/li>\n  <li><strong>\u00cdndia<\/strong> \u2013 Orissa<\/li>\n  <li><strong>R\u00fassia<\/strong> \u2013 Montes Urais<\/li>\n  <li><strong>Filipinas e Zimb\u00e1bue<\/strong> \u2013 Importantes reservas de cromita<\/li>\n<\/ul>\n\n<hr class=\"custom-divider\">\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-2.png\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" data-id=\"1996\" src=\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-2-300x300.png\" alt=\"\" class=\"wp-image-1996\" srcset=\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-2-300x300.png 300w, https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-2-1024x1024.png 1024w, https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-2-150x150.png 150w, https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-2-768x768.png 768w, https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-2-200x200.png 200w, https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-2-70x70.png 70w, https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-2.png 1440w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">Cromita &#8211; MRM UFRRJ<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-3.png\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" data-id=\"1997\" src=\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-3-300x300.png\" alt=\"\" class=\"wp-image-1997\" srcset=\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-3-300x300.png 300w, https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-3-1024x1024.png 1024w, https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-3-150x150.png 150w, https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-3-768x768.png 768w, https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-3-200x200.png 200w, https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-3-70x70.png 70w, https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-3.png 1440w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">Cromita &#8211; MRM UFRRJ<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita.png\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" data-id=\"1995\" src=\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-300x300.png\" alt=\"\" class=\"wp-image-1995\" srcset=\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-300x300.png 300w, https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-1024x1024.png 1024w, https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-150x150.png 150w, https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-768x768.png 768w, https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-200x200.png 200w, https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-70x70.png 70w, https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita.png 1440w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">Cromita &#8211; MRM UFRRJ<\/figcaption><\/figure>\n<\/figure>\n","protected":false},"excerpt":{"rendered":"<p>A cromita (FeCr\u2082O\u2084) \u00e9 um \u00f3xido do grupo dos espin\u00e9lios que cristaliza no sistema c\u00fabico, formando raros cristais octa\u00e9dricos, mas ocorrendo mais [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":1996,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[35],"tags":[],"class_list":["post-1994","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-oxidos"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cromita (Chromite) - Museu de Rochas e Minerais<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cromita (Chromite) - Museu de Rochas e Minerais\" \/>\n<meta property=\"og:description\" content=\"A cromita (FeCr\u2082O\u2084) \u00e9 um \u00f3xido do grupo dos espin\u00e9lios que cristaliza no sistema c\u00fabico, formando raros cristais octa\u00e9dricos, mas ocorrendo mais [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/\" \/>\n<meta property=\"og:site_name\" content=\"Museu de Rochas e Minerais\" \/>\n<meta property=\"article:published_time\" content=\"2025-09-02T15:54:45+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-02T15:54:46+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-2.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1440\" \/>\n\t<meta property=\"og:image:height\" content=\"1440\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"soraya\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"soraya\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/\"},\"author\":{\"name\":\"soraya\",\"@id\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/#\/schema\/person\/60b20aec5614967217c2b9312aa92a23\"},\"headline\":\"Cromita (Chromite)\",\"datePublished\":\"2025-09-02T15:54:45+00:00\",\"dateModified\":\"2025-09-02T15:54:46+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/\"},\"wordCount\":439,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/#organization\"},\"image\":{\"@id\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-2.png\",\"articleSection\":[\"\u00d3xidos\"],\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/\",\"url\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/\",\"name\":\"Cromita (Chromite) - Museu de Rochas e Minerais\",\"isPartOf\":{\"@id\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-2.png\",\"datePublished\":\"2025-09-02T15:54:45+00:00\",\"dateModified\":\"2025-09-02T15:54:46+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/#breadcrumb\"},\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/#primaryimage\",\"url\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-2.png\",\"contentUrl\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-2.png\",\"width\":1440,\"height\":1440},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"In\u00edcio\",\"item\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cromita (Chromite)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/#website\",\"url\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/\",\"name\":\"Museu de Rochas e Minerais\",\"description\":\"IGEO - Campus Serop\u00e9dica\",\"publisher\":{\"@id\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"pt-BR\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/#organization\",\"name\":\"Museu de Rochas e Minerais\",\"url\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/05\/LogoColorida-PNG-1.png\",\"contentUrl\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/05\/LogoColorida-PNG-1.png\",\"width\":512,\"height\":512,\"caption\":\"Museu de Rochas e Minerais\"},\"image\":{\"@id\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/#\/schema\/person\/60b20aec5614967217c2b9312aa92a23\",\"name\":\"soraya\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/ebc50c532e8c6e0e26d2c19f9e9ee9a995d14e75e12db0344b9ee0b4f90c767f?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/ebc50c532e8c6e0e26d2c19f9e9ee9a995d14e75e12db0344b9ee0b4f90c767f?s=96&d=mm&r=g\",\"caption\":\"soraya\"},\"url\":\"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/author\/soraya1\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Cromita (Chromite) - Museu de Rochas e Minerais","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/","og_locale":"pt_BR","og_type":"article","og_title":"Cromita (Chromite) - Museu de Rochas e Minerais","og_description":"A cromita (FeCr\u2082O\u2084) \u00e9 um \u00f3xido do grupo dos espin\u00e9lios que cristaliza no sistema c\u00fabico, formando raros cristais octa\u00e9dricos, mas ocorrendo mais [&hellip;]","og_url":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/","og_site_name":"Museu de Rochas e Minerais","article_published_time":"2025-09-02T15:54:45+00:00","article_modified_time":"2025-09-02T15:54:46+00:00","og_image":[{"width":1440,"height":1440,"url":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-2.png","type":"image\/png"}],"author":"soraya","twitter_card":"summary_large_image","twitter_misc":{"Escrito por":"soraya","Est. tempo de leitura":"4 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/#article","isPartOf":{"@id":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/"},"author":{"name":"soraya","@id":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/#\/schema\/person\/60b20aec5614967217c2b9312aa92a23"},"headline":"Cromita (Chromite)","datePublished":"2025-09-02T15:54:45+00:00","dateModified":"2025-09-02T15:54:46+00:00","mainEntityOfPage":{"@id":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/"},"wordCount":439,"commentCount":0,"publisher":{"@id":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/#organization"},"image":{"@id":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/#primaryimage"},"thumbnailUrl":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-2.png","articleSection":["\u00d3xidos"],"inLanguage":"pt-BR","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/","url":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/","name":"Cromita (Chromite) - Museu de Rochas e Minerais","isPartOf":{"@id":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/#website"},"primaryImageOfPage":{"@id":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/#primaryimage"},"image":{"@id":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/#primaryimage"},"thumbnailUrl":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-2.png","datePublished":"2025-09-02T15:54:45+00:00","dateModified":"2025-09-02T15:54:46+00:00","breadcrumb":{"@id":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/#breadcrumb"},"inLanguage":"pt-BR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/"]}]},{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/#primaryimage","url":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-2.png","contentUrl":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/09\/Cromita-2.png","width":1440,"height":1440},{"@type":"BreadcrumbList","@id":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/cromita-chromite\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"In\u00edcio","item":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/"},{"@type":"ListItem","position":2,"name":"Cromita (Chromite)"}]},{"@type":"WebSite","@id":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/#website","url":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/","name":"Museu de Rochas e Minerais","description":"IGEO - Campus Serop\u00e9dica","publisher":{"@id":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"pt-BR"},{"@type":"Organization","@id":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/#organization","name":"Museu de Rochas e Minerais","url":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/","logo":{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/#\/schema\/logo\/image\/","url":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/05\/LogoColorida-PNG-1.png","contentUrl":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-content\/uploads\/sites\/2\/2025\/05\/LogoColorida-PNG-1.png","width":512,"height":512,"caption":"Museu de Rochas e Minerais"},"image":{"@id":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/#\/schema\/person\/60b20aec5614967217c2b9312aa92a23","name":"soraya","image":{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/ebc50c532e8c6e0e26d2c19f9e9ee9a995d14e75e12db0344b9ee0b4f90c767f?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/ebc50c532e8c6e0e26d2c19f9e9ee9a995d14e75e12db0344b9ee0b4f90c767f?s=96&d=mm&r=g","caption":"soraya"},"url":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/author\/soraya1\/"}]}},"_links":{"self":[{"href":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-json\/wp\/v2\/posts\/1994","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-json\/wp\/v2\/comments?post=1994"}],"version-history":[{"count":1,"href":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-json\/wp\/v2\/posts\/1994\/revisions"}],"predecessor-version":[{"id":1998,"href":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-json\/wp\/v2\/posts\/1994\/revisions\/1998"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-json\/wp\/v2\/media\/1996"}],"wp:attachment":[{"href":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-json\/wp\/v2\/media?parent=1994"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-json\/wp\/v2\/categories?post=1994"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/laboratorios.ufrrj.br\/mineraiserochas\/wp-json\/wp\/v2\/tags?post=1994"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}