{"product_id":"schwarze-zinkblende-mit-bergkristall-quarz-madan-bulgarien-593-g-150-mm-aussergewohnliche-sammler-stufe-kristall-sammler-mineralien","title":"black sphalerite with rock crystal \u0026 quartz Madan Bulgaria – 593 g – 150 mm – exceptional collector's specimen crystal collector minerals","description":"Exceptionally large and extremely detailed mineral specimen from the famous Madan mining district in Bulgaria.\u003cbr\u003e\u003cbr\u003eThis impressive specimen is almost completely covered in countless fine white to partially transparent quartz crystals and rock crystals. The crystals grow densely packed in various directions, forming a fascinating, almost frost- or coral-like crystal carpet across the entire surface.\u003cbr\u003e\u003cbr\u003eDeep black areas of zinc blende (sphalerite) emerge time and again between the bright quartz crystals. It is precisely this strong contrast between the black sphalerite sections and the bright, partially transparent quartz that makes the specimen visually particularly appealing.\u003cbr\u003e\u003cbr\u003eIn addition to the countless smaller crystals, there are also larger, more clearly defined rock crystals that protrude from the dense crystal growth and provide additional highlights.\u003cbr\u003e\u003cbr\u003eThe enormous surface structure of the specimen is particularly impressive: almost every area is crystallized. The numerous ridges, depressions, and extensions make the piece appear different from every angle and invite you to discover new details again and again.\u003cbr\u003e\u003cbr\u003eWith a size of approximately 150 × 140 × 50 mm and a weight of 593 g, it is a magnificent cabinet-sized specimen that immediately catches the eye in any mineral collection.\u003cbr\u003e\u003cbr\u003eMadan in the Rhodope Mountains of Bulgaria is one of the classic European localities for high-quality sphalerite and quartz specimens. Particularly characteristic are the complex intergrowths of different mineral generations, for which the district is known to collectors worldwide.\u003cbr\u003e\u003cbr\u003eMinerals:\u003cbr\u003e• Zinc blende \/ Sphalerite – black to very dark\u003cbr\u003e• Rock crystal\u003cbr\u003e• Quartz – white to transparent\u003cbr\u003e• Dense, finely crystalline quartz growth\u003cbr\u003e\u003cbr\u003eLocality:\u003cbr\u003eMadan, Rhodopes, Bulgaria\u003cbr\u003e\u003cbr\u003eWeight:\u003cbr\u003eapprox. 593 g\u003cbr\u003e\u003cbr\u003eDimensions:\u003cbr\u003eapprox. 150 × 140 × 50 mm\u003cbr\u003e\u003cbr\u003eAn exceptionally well-structured collector's item with enormous crystal density and a beautiful contrast between deep black sphalerite and bright rock crystal or quartz.\u003cbr\u003e\u003cbr\u003eThe exact piece shown in the image is naturally the one that will be delivered.","brand":"Art of Nature Berlin","offers":[{"title":"Default Title","offer_id":53401608454411,"sku":null,"price":259.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2039\/7023\/files\/il_fullxfull.8625339299_66rr.jpg?v=1790695448","url":"https:\/\/artofnature.berlin\/en\/products\/schwarze-zinkblende-mit-bergkristall-quarz-madan-bulgarien-593-g-150-mm-aussergewohnliche-sammler-stufe-kristall-sammler-mineralien","provider":"Art of Nature Berlin","version":"1.0","type":"link"}