{"id":15913,"date":"2025-11-23T21:57:31","date_gmt":"2025-11-23T20:57:31","guid":{"rendered":"https:\/\/montaione.filaretedev.it\/decouvrir-montaione\/lonice-di-montaione\/"},"modified":"2025-12-16T13:12:14","modified_gmt":"2025-12-16T12:12:14","slug":"lonyx-de-montaione","status":"publish","type":"page","link":"https:\/\/montaione.filaretedev.it\/fr\/decouvrir-montaione\/lonyx-de-montaione\/","title":{"rendered":"L&rsquo;onyx de Montaione"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"15913\" class=\"elementor elementor-15913 elementor-14452\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1d6cbc1c e-flex e-con-boxed e-con e-parent\" data-id=\"1d6cbc1c\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-1a4ce3bf e-con-full mt-auto mb-4 e-flex e-con e-child\" data-id=\"1a4ce3bf\" data-element_type=\"container\">\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1a1a6367 e-flex e-con-boxed e-con e-parent\" data-id=\"1a1a6367\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-61996f45 e-con-full e-flex e-con e-child\" data-id=\"61996f45\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3765c95f elementor-widget elementor-widget-shortcode\" data-id=\"3765c95f\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><ul id=\"breadcrumbs\" class=\"breadcrumb w-100\"><li class=\"item-home\"><a class=\"bread-link bread-home\" href=\"https:\/\/montaione.filaretedev.it\/fr\/\" title=\"Home\">Home<\/a><\/li><li class=\"separator separator-home\">  |  <\/li><\/ul><\/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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-525b718f py-5 e-flex e-con-boxed e-con e-parent\" data-id=\"525b718f\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-7b3ac5b0 e-con-full e-flex e-con e-child\" data-id=\"7b3ac5b0\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5f0a7d46 elementor-widget elementor-widget-text-editor\" data-id=\"5f0a7d46\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Dans la partie sud du territoire de Montaione, pr\u00e8s de Iano, des fractures dans les bancs de travertin r\u00e9v\u00e8lent des filons d\u2019une vari\u00e9t\u00e9 d\u2019alb\u00e2tre calcaire qui, en raison de sa nature et de ses couleurs \u2013 g\u00e9n\u00e9ralement dans les tons de blanc, gris, brun et marron \u2013 est commun\u00e9ment appel\u00e9 alb\u00e2tre-onyx.<\/p><p>Les caract\u00e9ristiques structurelles les plus \u00e9videntes de cette pierre rappellent en effet l\u2019onyx v\u00e9ritable, une vari\u00e9t\u00e9 de calc\u00e9doine, avec ses stries blanches et noires typiques. Dans ce cas pr\u00e9cis, il s\u2019agit cependant de simple carbonate de calcium qui a subi un processus de repr\u00e9cipitation et de recristallisation, remplissant les fissures verticales du travertin d\u2019origine. L\u2019alb\u00e2tre-onyx ne doit pas \u00eatre confondu avec l\u2019alb\u00e2tre crayeux de Volterra, moins pr\u00e9cieux.<\/p><p>L\u2019extraction de l\u2019onyx de Montaione, en particulier dans la localit\u00e9 de California, \u00e9tait occasionnelle au d\u00e9but du XXe si\u00e8cle, mais \u00e0 partir de la fin des ann\u00e9es 60, elle a \u00e9t\u00e9 pratiqu\u00e9e de mani\u00e8re intensive, employant jusqu\u2019\u00e0 15 personnes rien que pour le processus d\u2019extraction : dans les ann\u00e9es 70, la fabrication d\u2019objets d\u00e9coratifs s\u2019est \u00e9galement r\u00e9pandue. Les donn\u00e9es indiquent que dans la transformation des min\u00e9raux non m\u00e9tallif\u00e8res, 15 personnes \u00e9taient employ\u00e9es dans la commune de Montaione en 1951, 71 en 1971 et 21 en 1981, avec une augmentation au cours des vingt premi\u00e8res ann\u00e9es bien sup\u00e9rieure \u00e0 la moyenne de la r\u00e9gion de la Bassa Valdelsa, augmentation qui doit probablement \u00eatre attribu\u00e9e pr\u00e9cis\u00e9ment \u00e0 la fabrication d\u2019onyx, tout comme la baisse peut \u00eatre attribu\u00e9e \u00e0 la crise qui a suivi dans le secteur, due au co\u00fbt \u00e9lev\u00e9 de l\u2019extraction.<\/p><p>Les activit\u00e9s d\u2019extraction n\u2019ont dur\u00e9 que jusqu\u2019\u00e0 la premi\u00e8re moiti\u00e9 des ann\u00e9es 80 du si\u00e8cle dernier et aujourd\u2019hui, il ne reste plus \u00e0 Montaione qu\u2019un seul artisan sp\u00e9cialis\u00e9 dans le travail des pierres dures, qui a progressivement diversifi\u00e9 sa production d\u2019objets d\u00e9coratifs, donnant plus de place aux mat\u00e9riaux alternatifs plut\u00f4t qu\u2019\u00e0 l\u2019onyx de Montaione en raison de la raret\u00e9 de la mati\u00e8re premi\u00e8re.<\/p><p>L\u2019onyx de Montaione est un produit tr\u00e8s particulier, avec des effets chromatiques de grande valeur, dont la pr\u00e9ciosit\u00e9 est due aux conditions g\u00e9ologiques sp\u00e9ciales de la r\u00e9gion, qui pr\u00e9sente une abondance de divers autres min\u00e9raux ayant contribu\u00e9 \u00e0 sa formation sp\u00e9cifique.<\/p><p>Le succ\u00e8s de ce mat\u00e9riau entre les ann\u00e9es 60 et 80 du si\u00e8cle dernier est li\u00e9 \u00e0 ses caract\u00e9ristiques qui le rendent facile \u00e0 travailler et \u00e0 polir, adapt\u00e9 \u00e0 la r\u00e9alisation d\u2019objets vari\u00e9s et pr\u00e9cieux tels que des statues, des bibelots, des dalles pour rev\u00eatements int\u00e9rieurs et ext\u00e9rieurs, des tables, etc.<\/p><p><a href=\"http:\/\/www.onicedimontaione.it\/\" target=\"_blank\" rel=\"noopener\">www.onicedimontaione.it<\/a><\/p>\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<div class=\"elementor-element elementor-element-f8e5e24 pb-5 e-flex e-con-boxed e-con e-parent\" data-id=\"f8e5e24\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-439eb16 elementor-arrows-position-outside pb-5 elementor-widget elementor-widget-image-carousel\" data-id=\"439eb16\" data-element_type=\"widget\" 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Les caract\u00e9ristiques structurelles les [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":13881,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-15913","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Montaioneintuscany - L&#039;onyx de Montaione<\/title>\n<meta name=\"description\" content=\"L&#039;onyx de Montaione est une pierre typique de la Valdelsa, extraite pr\u00e8s de Iano et utilis\u00e9e pour la fabrication d&#039;objets et de bijoux.\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Montaioneintuscany - 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