{"id":19485,"date":"2023-04-03T14:27:26","date_gmt":"2023-04-03T12:27:26","guid":{"rendered":"https:\/\/ssef.ch\/?p=19485"},"modified":"2023-09-21T17:46:17","modified_gmt":"2023-09-21T15:46:17","slug":"traitements-des-emeraudes","status":"publish","type":"post","link":"https:\/\/www.ssef.ch\/fr\/traitements-des-emeraudes\/","title":{"rendered":"Traitements des \u00e9meraudes"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"19485\" class=\"elementor elementor-19485\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5de6727 elementor-section-boxed elementor-section-height-default elementor-section-height-default qodef-backgound-letter-holder-no qodef-elementor-content-no\" data-id=\"5de6727\" 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-4cb3c62\" data-id=\"4cb3c62\" 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-329c1da elementor-widget elementor-widget-image\" data-id=\"329c1da\" 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 fetchpriority=\"high\" decoding=\"async\" width=\"1000\" height=\"417\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/06\/traitements-emeraudes-jpeg.webp\" class=\"attachment-large size-large wp-image-26551\" alt=\"\" srcset=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/06\/traitements-emeraudes-jpeg.webp 1000w, https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/06\/traitements-emeraudes-300x125.webp 300w, https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/06\/traitements-emeraudes-768x320.webp 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/>\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<div class=\"elementor-element elementor-element-dabdaa7 elementor-widget elementor-widget-text-editor\" data-id=\"dabdaa7\" 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\tL\u2019\u00e9meraude se forme dans des zones tectoniques (zones de gen\u00e8se des montagnes ou de subduction) o\u00f9 tous les ingr\u00e9dients chimiques et conditions sont r\u00e9unis pour sa cristallisation. Ces zones se caract\u00e9risent par une grande pression et une d\u00e9formation importante des roches. De nombreuses \u00e9meraudes pr\u00e9sentent donc des fissures ou des fractures.\n\nLes inclusions observ\u00e9es dans les \u00e9meraudes t\u00e9moignent souvent de leur histoire g\u00e9ologique. Dans le n\u00e9goce, ces inclusions pourront parfois \u00eatre appel\u00e9es le \u00ab jardin \u00bb d\u2019une \u00e9meraude.\n\nCes fissures peuvent \u00eatre visibles \u00e0 l\u2019\u0153il nu. C\u2019est la raison pour laquelle, depuis des temps anciens, les fissures d\u2019\u00e9meraude sont remplies \u00e0 l\u2019aide d\u2019huile incolore ou color\u00e9e afin d\u2019am\u00e9liorer l\u2019apparence visuelle de la pierre. Il est rare qu\u2019une \u00e9meraude ne pr\u00e9sente pas de fissure ou ne soit pas trait\u00e9e pour en am\u00e9liorer la transparence.\n\nLes traitements de l\u2019\u00e9meraude ne sont pas nouveaux. Les premiers t\u00e9moignages de Pline ainsi que le Papyrus de Stockholm (qui aurait \u00e9t\u00e9 \u00e9crit 400 ans avant J\u00e9sus-Christ) indiquaient que\n<blockquote>\u00ab les Smaragdi (\u00e9meraudes) s\u2019am\u00e9liorent avec du vin non dilu\u00e9 et de l\u2019huile verte, m\u00eame si elles ont \u00e9t\u00e9 naturellement impr\u00e9gn\u00e9es \u00bb. Source : Barney et al., 2006<\/blockquote>\nLes \u00e9meraudes sont g\u00e9n\u00e9ralement trait\u00e9es ou embellies afin d\u2019am\u00e9liorer leur puret\u00e9 et leur apparence en r\u00e9duisant la visibilit\u00e9 des fissures gr\u00e2ce \u00e0 l\u2019utilisation d\u2019agents de remplissage (incolores) comme l\u2019huile, la cire, les r\u00e9sines naturelles (p. ex. baume du Canada) et artificielles. Les acheteurs doivent avoir connaissance des lignes directrices de la Conf\u00e9d\u00e9ration internationale de la bijouterie (CIBJO) et du Comit\u00e9 d\u2019harmonisation des manuels de laboratoire (LMHC) par rapport aux informations \u00e0 divulguer sur les traitements des \u00e9meraudes.\n<h4>Au SSEF, nous faisons g\u00e9n\u00e9ralement une distinction entre :<\/h4>\n<ul>\n \t<li>les agents de remplissage traditionnels comme l\u2019huile (p. ex. huile de c\u00e8dre), la r\u00e9sine naturelle (p. ex. baume de Canada), la cire (p. ex. paraffine), et<\/li>\n \t<li>les agents de remplissage modernes comme les r\u00e9sines artificielles (p.ex. r\u00e9sine epoxy ou polystyr\u00e8ne).<\/li>\n \t<li>\u00c9meraude non trait\u00e9 ou trait\u00e9e : l\u2019image ci-dessous montre, \u00e0 gauche, une \u00e9meraude qui a \u00e9t\u00e9 nettoy\u00e9e et qui ne contient aucun agent de remplissage et \u00e0 droite, cette m\u00eame \u00e9meraude qui a \u00e9t\u00e9 rehuil\u00e9e, rendant ses fissures bien moins visibles.<\/li>\n<\/ul>\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-916145d elementor-widget elementor-widget-image\" data-id=\"916145d\" 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=\"600\" height=\"338\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/06\/traitements-des-emeraudes-small-jpeg.webp\" class=\"attachment-large size-large wp-image-26546\" alt=\"\" srcset=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/06\/traitements-des-emeraudes-small-jpeg.webp 600w, https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/06\/traitements-des-emeraudes-small-300x169.webp 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\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<div class=\"elementor-element elementor-element-503b4f3 elementor-widget elementor-widget-text-editor\" data-id=\"503b4f3\" 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\tLes agents de remplissage modernes (r\u00e9sine artificielle) ont de nombreux noms diff\u00e9rents comme Opticon, Permasafe, Gematrat, ou Excel. Ces agents de remplissage sont souvent durcis (polym\u00e9ris\u00e9s) et sont donc plus durables mais sont \u00e9galement tr\u00e8s difficile \u00e0 retirer des fissures fines.\n\nDes agents de remplissage traditionnels (p. ex. huile de c\u00e8dre, baume du Canada, huile de paraffine) sont utilis\u00e9s depuis des d\u00e9cennies &#8211; voire des si\u00e8cles &#8211; pour am\u00e9liorer la puret\u00e9 des pierres pr\u00e9cieuses (pas seulement des \u00e9meraudes !). Comme ils ne sont pas tr\u00e8s stables, ces agents de remplissage s\u00e8chent et\/ou s\u2019\u00e9vaporent de sorte que les fissures deviennent plus visibles au fil du temps et doivent \u00eatre de nouveau remplies.\n\nCertains ont une pr\u00e9f\u00e9rence pour les agents de remplissage traditionnels ; d\u2019autres privil\u00e9gient les agents de remplissage modernes. \n\nLa nature de la substance de remplissage (p. ex. huile ou r\u00e9sine artificielle) peut influencer le prix d\u2019une \u00e9meraude. Il est donc essentiel que la substance utilis\u00e9e pour le remplissage des fissures soit correctement identifi\u00e9e et quantifi\u00e9e. L\u2019identit\u00e9 et la quantit\u00e9 de la substance de remplissage peut \u00eatre d\u00e9termin\u00e9e visuellement (p. ex. \u00e0 l&rsquo;aide d&rsquo;un microscope et d&rsquo;une lampe UV, voir l&rsquo;image ci-dessous) et par le biais d\u2019une analyse spectroscopique (p. ex. en utilisant la spectroscopie FTIR).\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-82ecb28 elementor-widget elementor-widget-image\" data-id=\"82ecb28\" 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=\"961\" height=\"560\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/06\/huile-fissure-emeraude-jpeg.webp\" class=\"attachment-large size-large wp-image-26251\" alt=\"\" srcset=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/06\/huile-fissure-emeraude-jpeg.webp 961w, https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/06\/huile-fissure-emeraude-300x175.webp 300w, https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/06\/huile-fissure-emeraude-768x448.webp 768w\" sizes=\"(max-width: 961px) 100vw, 961px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">R\u00e9action de fluorescence jaune provoqu\u00e9e par l'huile pr\u00e9sente dans les fissures d'une \u00e9meraude. Cette image a \u00e9t\u00e9 prise sous une lampe \u00e0 ultraviolets (UV). Photo : Michael Krzemnicki, 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-c9c4086 elementor-widget elementor-widget-text-editor\" data-id=\"c9c4086\" 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>Le SSEF applique une politique sur les informations \u00e0 divulguer qui impose notamment d\u2019indiquer le mat\u00e9riau de remplissage ainsi que la quantit\u00e9 d\u2019agent de remplissage pr\u00e9sente, au moment de l\u2019analyse, sur l\u2019\u00e9meraude \u00e9tudi\u00e9e. L\u2019\u00e9chelle de quantification de l\u2019agent de remplissage pour les \u00e9meraudes utilis\u00e9e par le SSEF (sur la base de la terminologie du LMHC) est la suivante :<\/p><ul><li>sans indications de modification de la transparence des fissures au moment des analyses<\/li><li>quantit\u00e9 minime d\u2019huile (ou de r\u00e9sine artificielle, etc.) dans les fissures au moment des analyses<\/li><li>quantit\u00e9 mod\u00e9r\u00e9e d\u2019huile (ou de r\u00e9sine artificielle, etc.) dans les fissures au moment des analyses<\/li><li>quantit\u00e9 importante d\u2019huile (ou de r\u00e9sine artificielle, etc.) dans les fissures au moment des analyses<\/li><\/ul>\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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-23f44fc elementor-section-boxed elementor-section-height-default elementor-section-height-default qodef-backgound-letter-holder-no qodef-elementor-content-no\" data-id=\"23f44fc\" 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-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-cb48b37\" data-id=\"cb48b37\" 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-0b208e3 elementor-widget elementor-widget-text-editor\" data-id=\"0b208e3\" 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>Vous voulez en savoir plus sur les \u00e9meraudes ?<\/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-554e9dd elementor-widget elementor-widget-image\" data-id=\"554e9dd\" 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 loading=\"lazy\" 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-33520\" 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-d9a4b83\" data-id=\"d9a4b83\" 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-7557d31 elementor-widget elementor-widget-text-editor\" data-id=\"7557d31\" 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>Inscrivez-vous \u00e0 notre cours en ligne gratuit : Introduction aux \u00e9meraudes<\/h4><p>Apprenez tout sur les \u00e9meraudes. Leur histoire fascinante, comment elles se forment, d&rsquo;o\u00f9 elles viennent. Apprenez toutes les diff\u00e9rentes origines des \u00e9meraudes et leurs traitements. Prenez ce cours comme une introduction au monde merveilleux des \u00e9meraudes.<\/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-c0888ed elementor-widget elementor-widget-laurits_core_button\" data-id=\"c0888ed\" 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:\/\/masterclass-fr.ssef.ch\/p\/emeraudes\" target=\"_blank\"  >\n\t<span class=\"qodef-m-text\">S&#039;inscrire gratuitement<\/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>L\u2019\u00e9meraude se forme dans des zones tectoniques (zones de gen\u00e8se des montagnes ou de subduction) o\u00f9 tous les ingr\u00e9dients chimiques et conditions sont r\u00e9unis pour sa cristallisation. Ces zones se caract\u00e9risent par une grande pression et une d\u00e9formation importante des roches. De nombreuses \u00e9meraudes pr\u00e9sentent donc des fissures ou des fractures. Les inclusions observ\u00e9es dans [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":26546,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[684],"tags":[],"library_category":[],"library_author":[],"class_list":["post-19485","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-recherches-fr"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Traitements des \u00e9meraudes - 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\/fr\/traitements-des-emeraudes\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Traitements des \u00e9meraudes - SSEF\" \/>\n<meta property=\"og:description\" content=\"L\u2019\u00e9meraude se forme dans des zones tectoniques (zones de gen\u00e8se des montagnes ou de subduction) o\u00f9 tous les ingr\u00e9dients chimiques et conditions sont r\u00e9unis pour sa cristallisation. Ces zones se caract\u00e9risent par une grande pression et une d\u00e9formation importante des roches. De nombreuses \u00e9meraudes pr\u00e9sentent donc des fissures ou des fractures. 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