{"id":47834,"date":"2026-04-30T11:05:56","date_gmt":"2026-04-30T09:05:56","guid":{"rendered":"https:\/\/www.ssef.ch\/?p=47834"},"modified":"2026-04-30T11:05:56","modified_gmt":"2026-04-30T09:05:56","slug":"an-uncommon-artificial-resin-feature-in-a-brazilian-paraiba-tourmaline","status":"publish","type":"post","link":"https:\/\/www.ssef.ch\/fr\/an-uncommon-artificial-resin-feature-in-a-brazilian-paraiba-tourmaline\/","title":{"rendered":"An uncommon artificial resin feature in a brazilian Paraiba tourmaline"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"47834\" class=\"elementor elementor-47834\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7e59a34 e-flex e-con-boxed qodef-elementor-content-no e-con e-parent\" data-id=\"7e59a34\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-30c8b01 elementor-widget elementor-widget-text-editor\" data-id=\"30c8b01\" 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>By Dr. Wei Zhou, first published in <a href=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/02\/facette-2026-web.pdf\" target=\"_blank\" rel=\"noopener\">Facette 30<\/a> (March 2026)<\/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-f781946 elementor-widget elementor-widget-text-editor\" data-id=\"f781946\" 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>Recently, we examined a vibrant Brazilian Paraiba tourmaline weighing approximately 6 carats (Figure 1). One particular internal feature stood out that we found interesting for sharing.<\/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-04fc55f elementor-widget elementor-widget-image\" data-id=\"04fc55f\" 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=\"1024\" height=\"502\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/404-145713.jpg\" class=\"attachment-large size-large wp-image-47842\" alt=\"\" srcset=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/404-145713.jpg 1024w, https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/404-145713-300x147.jpg 300w, https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/404-145713-768x377.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 1: A Brazilian Paraiba tourmaline weighing approximately 6 carats. Photo: L. Phan, 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-e15ff22 elementor-widget elementor-widget-image\" data-id=\"e15ff22\" 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 decoding=\"async\" width=\"1024\" height=\"661\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/404-Fig_2.jpg\" class=\"attachment-large size-large wp-image-47848\" alt=\"\" srcset=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/404-Fig_2.jpg 1024w, https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/404-Fig_2-300x194.jpg 300w, https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/404-Fig_2-768x496.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 2: Comparison of the colour of the CVD diamond under daylight conditions, before and after exposure to deep-UV light. 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-0a13bda elementor-widget elementor-widget-text-editor\" data-id=\"0a13bda\" 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>As seen in Figure 2, an elongated, geometric negative inclusion in this Paraiba tourmaline\u2014surrounded by a hill-like structure\u2014caught the attention of our experienced gemmologists. At first glance, our gemmologists thought it might be a natural internal growth feature or a large healed fissure\u2014nothing out of the ordinary. But when we looked closer using Raman spectroscopy, the results told a different story.<\/p><p>Surprisingly, the Raman result showed a clear spectral signature of artificial resin (Figure 3), indicating that the cavity had likely been filled during a clarity enhancement process. What made it especially interesting was the shape: instead of the usual round bubble we might expect, the sticky, viscous artificial resin had formed a sharp-edged, geometric shape\u2014something rarely seen.<\/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-6b0dc13 elementor-widget elementor-widget-image\" data-id=\"6b0dc13\" 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 decoding=\"async\" width=\"1024\" height=\"375\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/404-Fig_3.jpg\" class=\"attachment-large size-large wp-image-47854\" alt=\"\" srcset=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/404-Fig_3.jpg 1024w, https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/404-Fig_3-300x110.jpg 300w, https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/404-Fig_3-768x281.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 3: Raman results showed a clear spectral signature of artificial resin. Spectra: 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-33214dd elementor-widget elementor-widget-spacer\" data-id=\"33214dd\" 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<div class=\"elementor-element elementor-element-e74e40a elementor-widget elementor-widget-text-editor\" data-id=\"e74e40a\" 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\tIn gemmology, we are often reminded that the interplay between natural formation and human intervention can produce unexpected results. While bubbles are typically round, this geometric inclusion challenges conventional expectations\u2014offering a fascinating example of how complex and intriguing gemstone interiors can be. The blend of nature growth and human enhancement sometimes creates internal \u2018landscapes\u2019 that are not only scientifically interesting but visually fascinating too.\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\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Recently, we examined a vibrant Brazilian Paraiba tourmaline weighing approximately 6 carats. One particular internal feature stood out that we found interesting for sharing.<\/p>\n","protected":false},"author":10,"featured_media":47836,"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":[734],"library_category":[],"library_author":[],"class_list":["post-47834","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research-blog","tag-tourmaline"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>An uncommon artificial resin feature in a brazilian Paraiba tourmaline - 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\/an-uncommon-artificial-resin-feature-in-a-brazilian-paraiba-tourmaline\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"An uncommon artificial resin feature in a brazilian Paraiba tourmaline - SSEF\" \/>\n<meta property=\"og:description\" content=\"Recently, we examined a vibrant Brazilian Paraiba tourmaline weighing approximately 6 carats. 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