{"id":60462,"date":"2024-02-16T10:00:00","date_gmt":"2024-02-16T02:00:00","guid":{"rendered":"https:\/\/honwaygroup.com\/octahedral-crystal-spinel\/"},"modified":"2024-10-25T16:01:47","modified_gmt":"2024-10-25T08:01:47","slug":"octahedral-crystal-spinel","status":"publish","type":"post","link":"https:\/\/honwaygroup.com\/en\/octahedral-crystal-spinel\/","title":{"rendered":"Octahedral Crystal \u2013 Spinel"},"content":{"rendered":"\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>Table of Contents<\/h2><nav><ul><li><a href=\"#\u4ecb\u7d39\">Introduction<\/a><\/li><li><a href=\"#\u5c16\u6676\u77f3-spinel\">Spinel<\/a><\/li><li><a href=\"#\u5c16\u6676\u77f3\u5546\u696d\u50f9\u503c\">Commercial Value of Spinel<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u4ecb\u7d39\"><strong>Introduction<\/strong><\/h3>\n\n\n\n<p>The English name &#8220;spinel&#8221; likely originates from the Latin word &#8220;Spina,&#8221; meaning &#8220;little thorn,&#8221; referring to the eight points on its octahedral crystal structure. Spinel is a fascinating gemstone; the blue variety resembles sapphire, while the red variety resembles ruby. Historically, red spinel was often mistaken for ruby, such as the Timur Ruby and the Black Prince&#8217;s Ruby in the British Royal collection, both later identified as red spinels.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns alignfull is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-container-core-column-is-layout-f7a85e60 wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--80);padding-right:0;padding-bottom:var(--wp--preset--spacing--80);padding-left:0;font-size:0px;line-height:0\">\n<figure class=\"wp-block-image alignwide size-full\"><a href=\"https:\/\/honwaygroup.com\/wp-content\/uploads\/2024\/02\/20240216_\u5c16\u6676\u77f3.webp\"><img fetchpriority=\"high\" decoding=\"async\" width=\"547\" height=\"416\" src=\"https:\/\/honwaygroup.com\/wp-content\/uploads\/2024\/02\/20240216_\u5c16\u6676\u77f3.webp\" alt=\"\" class=\"wp-image-38532\" srcset=\"https:\/\/honwaygroup.com\/wp-content\/uploads\/2024\/02\/20240216_\u5c16\u6676\u77f3.webp 547w, https:\/\/honwaygroup.com\/wp-content\/uploads\/2024\/02\/20240216_\u5c16\u6676\u77f3-300x228.webp 300w\" sizes=\"(max-width: 547px) 100vw, 547px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading has-text-align-center\" id=\"\u5c16\u6676\u77f3-spinel\"><strong><a href=\"https:\/\/www.google.com\/search?sca_esv=04a48a7a7c101db9&amp;sca_upv=1&amp;q=Spinel&amp;udm=2&amp;fbs=AEQNm0AaBOazvTRM_Uafu9eNJJzC3QMRKTS5UIeA1ZwBo3sfI5STBA5pr7fqo2I_v__3YVGutX-70hIyezlJk563FvnaANll79LmO8NDYO9Lkpjx2The5iuQaOyJHx4O_Fyzp0DQNEjqPzGexXVkjQVznkozVrB0JCUsS5dbHbfEpeh2LLGIV7QHN6o1xOAtozZF63Xrk5ai&amp;sa=X&amp;sqi=2&amp;ved=2ahUKEwjQt4PpveSGAxV9kK8BHboECNgQtKgLegQIDhAB&amp;biw=1536&amp;bih=695&amp;dpr=1.25\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Spinel<\/a><\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li style=\"line-height:2\">Crystal system: equiaxed crystal system<\/li>\n\n\n\n<li style=\"line-height:2\">Hardness: 8<\/li>\n\n\n\n<li style=\"line-height:2\">Specific gravity: 3.58~3.98<\/li>\n\n\n\n<li style=\"line-height:2\">Luster: Vitreous luster<\/li>\n\n\n\n<li style=\"line-height:2\">Transparency: Transparent to opaque<\/li>\n\n\n\n<li style=\"line-height:2\">Color: green, brown, orange, red, blue, black<\/li>\n\n\n\n<li style=\"line-height:2\">Refractive index: 1.71~1.73<\/li>\n\n\n\n<li style=\"line-height:2\">Birefringence: None<\/li>\n\n\n\n<li style=\"line-height:2\">Fluorescence: None.<\/li>\n\n\n\n<li style=\"line-height:2\">Cleavage: Imperfect cleavage.<\/li>\n\n\n\n<li style=\"line-height:2\">Properties: Single refraction, no pleochroism<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u5c16\u6676\u77f3\u5546\u696d\u50f9\u503c\"><strong>Commercial Value of Spinel<\/strong><\/h3>\n\n\n\n<p>The value of spinel increases with better color and clarity. Ideally, spinel\u2019s color should closely resemble the vibrant red or blue of rubies and sapphires. However, spinel often displays lower saturation, appearing more brownish-red or grayish-blue.<br><\/p>\n\n\n\n<p>Chromium-rich red spinel has a color very close to high-quality rubies, making it quite expensive. Naturally cobalt-colored blue spinel exhibits a vivid blue hue. One of the biggest advantages of spinel is that it usually requires no enhancement treatments, providing buyers with peace of mind. Spinel is prized for its high hardness, durability, and chemical stability, requiring little special care. Its popularity in the market stems from its beautiful appearance, comparable to that of rubies and sapphires, and the fact that it is typically untreated.<\/p>\n\n\n\n<figure class=\"wp-block-pullquote has-medium-font-size\"><blockquote><p>Follow Honway to learn more about the characteristics of gemstones~<\/p><\/blockquote><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>The English name for spinel comes from the Latin word &#8220;Spina,&#8221; meaning &#8220;little thorn,&#8221; due to the eight-pointed structure of its octahedral crystal. The blue and red varieties of spinel resemble sapphire and ruby, respectively. In the past, red spinel was often mistaken for ruby, such as the British Royal Family&#8217;s Timur Ruby and the Black Prince&#8217;s Ruby, both later identified as red spinel. The commercial value of spinel depends on its color and clarity, with the most valuable being those closest to pure red or blue. Chromium-rich red spinels and cobalt-rich blue spinels are highly priced and usually require no enhancement. Spinel has high hardness, good toughness, and excellent chemical stability, making it a popular choice in the market.<\/p>\n","protected":false},"author":1,"featured_media":38534,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","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-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":"","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-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":"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":""},"mobile":{"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":""}},"footnotes":""},"categories":[2251],"tags":[2843],"class_list":["post-60462","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gemstones","tag-spinel"],"_links":{"self":[{"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/posts\/60462","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/comments?post=60462"}],"version-history":[{"count":0,"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/posts\/60462\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/media\/38534"}],"wp:attachment":[{"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/media?parent=60462"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/categories?post=60462"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/tags?post=60462"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}