{"product_id":"chalcopyrite-galena-with-calcite-and-sphalerite-osikovo-orebody-madan-bulgaria","title":"Chalcopyrite \u0026 Galena with Calcite and Sphalerite – Osikovo Orebody, Madan, Bulgaria","description":"\u003cp\u003eAn attractive multi-mineral specimen from the \u003cstrong\u003eOsikovo Orebody, Deveti Septemvri Complex, Madan Orefield, Bulgaria\u003c\/strong\u003e, featuring prominent brassy-gold \u003cstrong\u003echalcopyrite\u003c\/strong\u003e associated with silvery \u003cstrong\u003egalena\u003c\/strong\u003e, dark \u003cstrong\u003esphalerite\u003c\/strong\u003e, and contrasting white \u003cstrong\u003ecalcite\u003c\/strong\u003e crystals.\u003c\/p\u003e\n\u003cp\u003eThe specimen displays a particularly appealing combination of metallic sulphide minerals against the lighter calcite, with well-defined crystal surfaces and strong metallic luster. The association is characteristic of the famous lead-zinc deposits of the Madan mining district, easily one of my favourite localities (I love metallic minerals).\u003c\/p\u003e\n\u003cp\u003eThe original North Star Minerals label records the specimen as mined in 1997. It was acquired by the late Bill Rouslin and resided in his collection until now, so there is useful collection provenance here.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMineral:\u003c\/strong\u003e Chalcopyrite, Galena, Calcite \u0026amp; Sphalerite\u003cbr\u003e\u003cstrong\u003eLocality:\u003c\/strong\u003e Osikovo Orebody, Deveti Septemvri Complex, Madan Orefield, Bulgaria\u003cbr\u003e\u003cstrong\u003eCrystal System:\u003c\/strong\u003e Tetragonal (Chalcopyrite); Cubic (Galena); Trigonal (Calcite); Cubic (Sphalerite)\u003cbr\u003e\u003cstrong\u003eMineral Class:\u003c\/strong\u003e Sulfides with Carbonate\u003cbr\u003e\u003cstrong\u003eProvenance:\u003c\/strong\u003e Ex Bill Rouslin #418; North Star Minerals; Mined 1997\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e 8 × 5.5 cm\u003c\/p\u003e","brand":"Rocky Mountain Minerals and Fossils","offers":[{"title":"Default Title","offer_id":52749425049882,"sku":null,"price":140.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/6011\/1386\/files\/Chalcopyrite-Galena-Calcite-Sphalerite-Osikovo-Madan-Bulgaria02.jpg?v=1787863159","url":"https:\/\/keithrocks.ca\/products\/chalcopyrite-galena-with-calcite-and-sphalerite-osikovo-orebody-madan-bulgaria","provider":"Rocky Mountain Minerals and Fossils","version":"1.0","type":"link"}