{"title":"Tetrahedrite","description":"\u003cp\u003e\u003cstrong\u003eTetrahedrite\u003c\/strong\u003e is a copper antimony sulfosalt, the antimony-rich end member of the \u003cstrong\u003etetrahedrite group\u003c\/strong\u003e, forming a solid solution series with the arsenic-dominant \u003cstrong\u003etennantite\u003c\/strong\u003e and grading toward the silver-rich variety \u003cstrong\u003efreibergite\u003c\/strong\u003e. Named for its characteristic tetrahedral crystal habit, it typically forms steel-gray to iron-black, sharply modified triangular crystals, sometimes twinned, and is one of the most widespread sulfosalts on Earth, often carrying significant silver and serving as an important ore of both copper and silver.\u003c\/p\u003e\u003cp\u003eClassic historic occurrences include \u003cstrong\u003eFreiberg\u003c\/strong\u003e in Saxony, the \u003cstrong\u003eSiegerland\u003c\/strong\u003e district and \u003cstrong\u003eRhineland-Palatinate\u003c\/strong\u003e mines in Germany, \u003cstrong\u003ePříbram\u003c\/strong\u003e in Bohemia, and the mercury-bearing variety \u003cstrong\u003eschwazite\u003c\/strong\u003e from \u003cstrong\u003eSchwaz-Brixlegg\u003c\/strong\u003e in Tyrol, Austria. Exceptional collector-grade crystals come from the \u003cstrong\u003eHerodsfoot Mine\u003c\/strong\u003e in Cornwall, England, typically coated with golden chalcopyrite, while Peru — with the \u003cstrong\u003eCasapalca\u003c\/strong\u003e, \u003cstrong\u003eJulcani\u003c\/strong\u003e, and \u003cstrong\u003ePasto Bueno\u003c\/strong\u003e deposits — has yielded some of the finest tetrahedrite specimens known. Other notable localities include the \u003cstrong\u003eSweet Home Mine\u003c\/strong\u003e in Colorado, the \u003cstrong\u003eBingham Canyon Mine\u003c\/strong\u003e in Utah, and the \u003cstrong\u003eMachacamarca district\u003c\/strong\u003e in Bolivia.\u003c\/p\u003e\u003cp\u003ePrized for its lustrous tetrahedral crystal form, occasional iridescent tarnish, and frequent association with chalcopyrite, pyrite, siderite, and calcite, tetrahedrite is a staple of serious sulfide and base-metal collections. Fine, sharp, undamaged crystal clusters — especially from Peru, Cornwall, and the classic German localities — remain highly sought after by systematic and aesthetic collectors alike.\u003c\/p\u003e","products":[{"product_id":"tetraedrite-con-quarzo-ialino-da-casapalca-peru-1970","title":"TETRAHEDRITE \u0026 QUARTZ – Historic Mineral Association from Casapalca, Peru (1970)","description":"\u003cp\u003eHistoric mineral association of Tetrahedrite with Quartz from Casapalca Mine, Peru, collected in 1970. The specimen shows well-formed metallic sulfide crystals in association with clear quartz, offering strong aesthetic contrast and high collector value.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong data-start=\"669\" data-end=\"686\"\u003eMineral Data:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong data-start=\"687\" data-end=\"702\"\u003eDimensions:\u003c\/strong\u003e 103 × 78 × 45 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong data-start=\"720\" data-end=\"731\"\u003eWeight:\u003c\/strong\u003e 521.26 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong data-start=\"741\" data-end=\"756\"\u003eProvenance:\u003c\/strong\u003e Casapalca Mine, Chicla District, Huarochirí Province, Lima, Peru\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ITALMINERAL","offers":[{"title":"Default Title","offer_id":44328219476077,"sku":null,"price":69.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/8027\/6333\/files\/imgi_482_AGC_20240228_003959399.jpg?v=1772658258"}],"url":"https:\/\/www.italmineral.com\/collections\/tetrahedrite.oembed","provider":"ITALMINERAL","version":"1.0","type":"link"}