{"title":"Cuprian Adamite","description":"\u003cp\u003e\u003cstrong\u003eCuprian Adamite\u003c\/strong\u003e is the copper-rich variety of \u003cstrong\u003eAdamite\u003c\/strong\u003e, a zinc arsenate hydroxide with the ideal formula Zn2(AsO4)(OH), belonging to the \u003cstrong\u003eolivenite group\u003c\/strong\u003e within the \u003cstrong\u003eadamite-olivenite series\u003c\/strong\u003e. When copper substitutes for zinc in the crystal lattice, the normally yellow to honey-colored adamite turns into vivid emerald-green, blue-green or turquoise crystals, the most prized color range among adamite collectors. Compositions that approach a 1:1 Zn:Cu ratio are today classified separately as the distinct species \u003cstrong\u003ezincolivenite\u003c\/strong\u003e, and many older specimens historically labeled cuproadamite have since been re-examined and reassigned to that species — a nomenclature point serious collectors should know. Adamite forms as a secondary mineral in the oxidized zone of zinc-arsenic ore deposits, typically as wedge-tipped, glassy prismatic crystals or radiating fan-like sprays with a Mohs hardness of about 3.5 and specific gravity near 4.3–4.4.\u003c\/p\u003e\u003cp\u003eThe undisputed benchmark locality for \u003cstrong\u003eCuprian Adamite\u003c\/strong\u003e is the \u003cstrong\u003eOjuela Mine\u003c\/strong\u003e in \u003cstrong\u003eMapimí\u003c\/strong\u003e, \u003cstrong\u003eDurango\u003c\/strong\u003e, Mexico, thought to have supplied the vast majority of the world's finest adamite specimens, with brilliant green crystals studding the classic red-brown limonite matrix alongside \u003cstrong\u003elegrandite\u003c\/strong\u003e, \u003cstrong\u003ecalcite\u003c\/strong\u003e, \u003cstrong\u003erosasite\u003c\/strong\u003e, \u003cstrong\u003emimetite\u003c\/strong\u003e and \u003cstrong\u003econichalcite\u003c\/strong\u003e. A second, more exceptional source is the \u003cstrong\u003eTsumeb Mine\u003c\/strong\u003e in Namibia, where copper-enriched adamite occurs as gemmy emerald-green crystals in striking association with iridescent \u003cstrong\u003ebornite\u003c\/strong\u003e, \u003cstrong\u003eschultenite\u003c\/strong\u003e and \u003cstrong\u003esmithsonite\u003c\/strong\u003e — rarer and smaller than Mexican material but highly regarded by connoisseurs. Adamite as a species was first described from the type locality of \u003cstrong\u003eChañarcillo\u003c\/strong\u003e, Atacama, Chile, and other historic occurrences with copper-bearing crystals include the ancient \u003cstrong\u003eLavrion\u003c\/strong\u003e district in Greece and \u003cstrong\u003eCap Garonne\u003c\/strong\u003e in France.\u003c\/p\u003e\u003cp\u003eCollectors prize \u003cstrong\u003eCuprian Adamite\u003c\/strong\u003e for its saturated, almost electric green-to-blue color, its vitreous to adamantine luster, and its typically strong yellow-green to green fluorescence under ultraviolet light, a signature trait used to distinguish genuine material from imitations. The dramatic contrast between the bright green crystal druses and the iron-oxide matrix from Ojuela, or the rich sulfide backdrop at Tsumeb, makes these specimens some of the most photogenic and sought-after arsenate minerals in the hobby, valued equally for their aesthetics, their scientific interest as part of a well-studied solid-solution series, and their historic ties to two of the world's most celebrated mineral-producing mines.\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\/cuprian-adamite.oembed","provider":"ITALMINERAL","version":"1.0","type":"link"}