{"id":32944,"date":"2023-07-06T17:13:10","date_gmt":"2023-07-06T15:13:10","guid":{"rendered":"https:\/\/ssef.ch\/?p=32944"},"modified":"2023-09-21T17:41:36","modified_gmt":"2023-09-21T15:41:36","slug":"dyed-quartz-imitating-emerald","status":"publish","type":"post","link":"https:\/\/www.ssef.ch\/fr\/dyed-quartz-imitating-emerald\/","title":{"rendered":"Dyed quartz imitating emerald"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"32944\" class=\"elementor elementor-32944\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4ae10602 elementor-section-boxed elementor-section-height-default elementor-section-height-default qodef-backgound-letter-holder-no qodef-elementor-content-no\" data-id=\"4ae10602\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-112861b6\" data-id=\"112861b6\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8193a95 elementor-widget elementor-widget-text-editor\" data-id=\"8193a95\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>First published in <a href=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/05\/facette-2023-web.pdf\">Facette 28<\/a> (May 2023)<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-73a9759 elementor-widget elementor-widget-image\" data-id=\"73a9759\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"960\" height=\"641\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/07\/310_Fig1_Dyed-Quartz-imitating-Emerald-jpg.webp\" class=\"attachment-full size-full wp-image-32955\" alt=\"\" srcset=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/07\/310_Fig1_Dyed-Quartz-imitating-Emerald-jpg.webp 960w, https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/07\/310_Fig1_Dyed-Quartz-imitating-Emerald-300x200.webp 300w, https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/07\/310_Fig1_Dyed-Quartz-imitating-Emerald-768x513.webp 768w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 1: Imitation of a rough emerald. Photo: SSEF.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8ca6be6 elementor-widget elementor-widget-text-editor\" data-id=\"8ca6be6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"page\" title=\"Page 30\"><div class=\"layoutArea\"><div class=\"column\"><p>From time to time, we receive some oddities for testing, such as the rough \u201cemerald\u201d, reportedly originating from Africa and submitted by a client for testing.<\/p><p>Already a quick visual examination made it clear that this was not an emerald. The surface was dominated by conchoidal fractures and covered partly with dark mica. A closer analytical examination with Raman spectroscopy clearly identified the stone as quartz. Microscopic observation further revealed that a mix of mica and sand was glued to part of the surface of this rough to cleverly mimic natural minerals commonly attached to rough emeralds found in mica schists, e.g. in the Kafubu area in Zambia.<\/p><p>The relatively homogeneous green colour (resembling that of certain Zambian emeralds) of this sample was due to green colour dye found within the fissures and also mixed in with the glue at the surface. We found neither chromium nor any pleochroism in this stone, which are characteristic features typically found in emeralds.<\/p><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ae7f74b elementor-widget elementor-widget-spacer\" data-id=\"ae7f74b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5c6c7bb elementor-section-boxed elementor-section-height-default elementor-section-height-default qodef-backgound-letter-holder-no qodef-elementor-content-no\" data-id=\"5c6c7bb\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-extended\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-61604e5\" data-id=\"61604e5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-84b602b elementor-widget elementor-widget-text-editor\" data-id=\"84b602b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Want to learn more about emeralds?<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-89b6cfd elementor-widget elementor-widget-image\" data-id=\"89b6cfd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"667\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/04\/cta-emerald-course.jpeg\" class=\"attachment-large size-large wp-image-33517\" alt=\"\" srcset=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/04\/cta-emerald-course.jpeg 1024w, https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/04\/cta-emerald-course-300x195.webp 300w, https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/04\/cta-emerald-course-768x500.webp 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-d9c82d4\" data-id=\"d9c82d4\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b2010c6 elementor-widget elementor-widget-text-editor\" data-id=\"b2010c6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4>Start your journey to becoming an emerald expert with our free online course \u00ab\u00a0Introduction to emeralds\u00a0\u00bb.<\/h4><p>Learn all about emeralds. Their fascinating history, how they form, where they come from. Learn about all the different origins of emeralds and their treatments. Take this course as an introduction to the wonderful world of emeralds.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3f7c4ca elementor-widget elementor-widget-laurits_core_button\" data-id=\"3f7c4ca\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"laurits_core_button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<a class=\"qodef-shortcode qodef-m qodef-button qodef-layout--filled qodef-html--link\" href=\"https:\/\/www.ssef.ch\/masterclass\/emerald-en\/\" target=\"_self\"  >\n\t<span class=\"qodef-m-text\">Discover the course<\/span>\n<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>From time to time, we receive some oddities for testing, such as the rough \u201cemerald\u201d, reportedly originating from Africa and submitted by a client for testing. Already a quick visual examination made it clear that this was not an emerald. The surface was dominated by conchoidal fractures and covered partly with dark mica.<\/p>\n","protected":false},"author":3,"featured_media":32947,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[626],"tags":[727],"library_category":[],"library_author":[],"class_list":["post-32944","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research-blog","tag-emerald"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Dyed quartz imitating emerald - SSEF<\/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:\/\/www.ssef.ch\/dyed-quartz-imitating-emerald\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dyed quartz imitating emerald - SSEF\" \/>\n<meta property=\"og:description\" content=\"From time to time, we receive some oddities for testing, such as the rough \u201cemerald\u201d, reportedly originating from Africa and submitted by a client for testing. 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