{"title":"Adamite","description":"\u003cp\u003e\u003cstrong\u003eAdamite\u003c\/strong\u003e is a zinc arsenate hydroxide, Zn₂(AsO₄)(OH), belonging to the \u003cstrong\u003eolivenite group\u003c\/strong\u003e and crystallizing in the orthorhombic system as wedge-shaped prisms, druses, and radiating sprays with a vitreous to adamantine luster. It forms as a secondary mineral in the oxidized zones of zinc- and arsenic-bearing hydrothermal deposits, typically alongside \u003cstrong\u003ehemimorphite\u003c\/strong\u003e, \u003cstrong\u003eaustinite\u003c\/strong\u003e, \u003cstrong\u003esmithsonite\u003c\/strong\u003e, \u003cstrong\u003eolivenite\u003c\/strong\u003e, \u003cstrong\u003elegrandite\u003c\/strong\u003e, and limonitic iron oxides. Colors range from honey-yellow and lime-green to blue, pink, and violet depending on trace substitutions: copper produces the vivid green \u003cstrong\u003ecuprian adamite\u003c\/strong\u003e, cobalt yields pink to violet \u003cstrong\u003ecobaltoan adamite\u003c\/strong\u003e, and manganese gives rise to \u003cstrong\u003emanganoan adamite\u003c\/strong\u003e. At Mohs hardness 3.5 with a specific gravity of 4.32–4.48, adamite is soft and brittle, prized purely as a display and fluorescent-mineral species rather than for any industrial use.\u003c\/p\u003e\u003cp\u003eThe type locality is the historic \u003cstrong\u003eChañarcillo\u003c\/strong\u003e silver-zinc district in the Atacama Region of Chile, where the species was first described in 1866 from yellow crystals of the Dolores mine. Its defining occurrence, however, is the \u003cstrong\u003eOjuela Mine\u003c\/strong\u003e at Mapimí, Durango, Mexico, a limestone-replacement deposit whose oxidized zone has produced the world's finest and most fluorescent adamite: lime-green to yellow crystal sprays on contrasting red-brown limonite gossan, often rivaling Franklin willemite in shortwave UV brilliance thanks to uranyl-ion activation. Other classic sources include the ancient \u003cstrong\u003eLavrion\u003c\/strong\u003e (Laurium) mining district in Greece, celebrated for green to blue-green crystals; \u003cstrong\u003eTsumeb\u003c\/strong\u003e in Namibia, source of rare cobaltoan blue and violet material from one of the world's most mineralogically diverse ore bodies; \u003cstrong\u003eCap Garonne\u003c\/strong\u003e in France; the \u003cstrong\u003eDachang\u003c\/strong\u003e ore field at Nandan, Guangxi, China; and, in the United States, \u003cstrong\u003eGold Hill\u003c\/strong\u003e in Tooele County, Utah, and Chloride Cliff in Death Valley, California.\u003c\/p\u003e\u003cp\u003eCollectors seek adamite for the striking contrast between its jewel-toned, often gemmy crystals and dark gossan matrix, and for its dramatic response under both longwave and shortwave ultraviolet light, glowing bright green, yellow-green, or bluish-white. Because fluorescence intensity varies enormously even between specimens from the same pocket, connoisseurs specifically hunt for the brightest Mapimí pieces and rare color varieties such as cuprian or cobaltoan adamite. Its combination of vivid natural color, fine crystal form, and UV performance makes adamite a cornerstone species for both aesthetic mineral collections and dedicated fluorescent-mineral cabinets.\u003c\/p\u003e","products":[{"product_id":"rz-adamite-messico-0","title":"ADAMITE – Vivid Green Crystals, UV Fluorescent, Ojuela Mine, Mapimí, Mexico","description":"\u003cp\u003eThis eye-catching specimen features numerous well-formed green adamite crystals rising from a contrasting reddish-brown gossan matrix, with larger prismatic crystals standing out prominently at the center of the piece. The vivid green coloration, combined with the bold color contrast against the matrix and a striking green glow under ultraviolet light, make this a highly desirable piece for both display and fluorescent mineral collecting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMineral Data:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 38 x 33 x 23 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 17 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProvenance:\u003c\/strong\u003e Ojuela Mine, Mapimí, Mapimí Municipality, Durango, Mexico\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ITALMINERAL","offers":[{"title":"Default Title","offer_id":45609950609517,"sku":null,"price":29.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/8027\/6333\/files\/IMG20260708183913.jpg?v=1786529749"}],"url":"https:\/\/www.italmineral.com\/collections\/adamite.oembed","provider":"ITALMINERAL","version":"1.0","type":"link"}