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Up for sale is a stunning, premium multi-mineral cabinet specimen from the legendary Borieva Mine within the world-famous Madan Ore Field (Rhodope Mountains, Bulgaria). Weighing in at a substantial 3 pounds, this piece features a textbook European polymetallic sulfide assemblage. It serves as an incredible display piece for rockhounds, geology enthusiasts, or serious mineral collectors looking for a specimen from a highly sought-after European locality. Geological Highlights & Features Borieva Mine Locality: Specimens from the Borieva Mine are famous worldwide for their classic mineral combinations and distinct matrix compositions. Rich Dark Sphalerite: A heavy, glittering crust of deep-brown, iron-rich sphalerite crystals blankets the main face of the rock. Metallic Galena: Patches of dense, silvery-gray galena are nestled natively alongside the sphalerite. "Gold & Silver" Peppering: The host rock matrix is heavily peppered with micro-crystalline pyrite and chalcopyrite, creating a be