{"title":"Conichalcite","description":"\u003cp\u003e\u003cstrong\u003eConichalcite\u003c\/strong\u003e is a calcium copper arsenate, CaCu(AsO4)(OH), prized by collectors for its vivid grass-green to apple-green botryoidal crusts and reniform masses. It belongs to the adelite-descloizite group and forms solid-solution series with \u003cstrong\u003eaustinite\u003c\/strong\u003e, \u003cstrong\u003eduftite\u003c\/strong\u003e, and \u003cstrong\u003etangeite\u003c\/strong\u003e, making it an interesting species for those studying arsenate-vanadate chemistry. It typically forms in the oxidized zones of copper orebodies, where oxygen-rich groundwater alters primary sulfides, and is commonly found intergrown with \u003cstrong\u003emalachite\u003c\/strong\u003e, \u003cstrong\u003eazurite\u003c\/strong\u003e, \u003cstrong\u003esmithsonite\u003c\/strong\u003e, \u003cstrong\u003eadamite\u003c\/strong\u003e, and \u003cstrong\u003eolivenite\u003c\/strong\u003e on limonitic matrix.\u003c\/p\u003e\u003cp\u003eThe species was first described in 1849 from the \u003cstrong\u003eDon Bonete mine\u003c\/strong\u003e near Hinojosa del Duque in Córdoba, Spain, its type locality. The finest and most sought-after specimens, however, come from the \u003cstrong\u003eTsumeb Mine\u003c\/strong\u003e in Namibia, celebrated for sharp, lustrous crystal groups on contrasting matrix. Other classic sources include the \u003cstrong\u003eOjuela Mine\u003c\/strong\u003e in Mapimí, Mexico, numerous copper districts of \u003cstrong\u003eUtah\u003c\/strong\u003e, \u003cstrong\u003eArizona\u003c\/strong\u003e, and \u003cstrong\u003eNevada\u003c\/strong\u003e in the United States, the \u003cstrong\u003eDome Rock Copper Mine\u003c\/strong\u003e in South Australia, and occurrences across Chile, England, and Poland.\u003c\/p\u003e\u003cp\u003eCollectors value conichalcite for its saturated green color, unusual acicular and hemispherical crystal aggregates, and its role as a diagnostic secondary copper-arsenate in classic oxidation-zone assemblages. Well-formed crystals are rare, so cabinet-grade pieces with bright, glassy botryoidal crusts from Tsumeb or Ojuela are especially desirable for thumbnail and miniature mineral collections.\u003c\/p\u003e","products":[{"product_id":"lz-conichalcite-calcite-mexicco","title":"CONICHALCITE \u0026 CALCITE – Vibrant Green Contrast from Ojuela Mine, Mexico","description":"\u003cp\u003eNatural Calcite on Conichalcite from Ojuela Mine, Mapimí, Durango, Mexico. Attractive specimen featuring well-formed Calcite crystals set on a vivid green Conichalcite matrix, creating a strong and aesthetic color contrast. Highly collectible association piece with excellent visual impact. \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong data-start=\"550\" data-end=\"567\"\u003eMineral Data:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong data-start=\"568\" data-end=\"583\"\u003eDimensions:\u003c\/strong\u003e 110 x 50 x 32 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong data-start=\"601\" data-end=\"612\"\u003eWeight:\u003c\/strong\u003e 176 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong data-start=\"619\" data-end=\"634\"\u003eProvenance:\u003c\/strong\u003e Ojuela Mine, Mapimí, Durango, Mexico\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ITALMINERAL","offers":[{"title":"Default Title","offer_id":45425068998765,"sku":null,"price":75.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/8027\/6333\/files\/IMG20260308134019.jpg?v=1783145368"}],"url":"https:\/\/www.italmineral.com\/collections\/conichalcite.oembed","provider":"ITALMINERAL","version":"1.0","type":"link"}