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Madan mining area, Rhodope Mountains, Smolyan Oblast, Bulgaria
Galena, Quartz, Chalcopyrite
Overall size: 76 mm x 71 mm. Largest crystals: galena 14 mm on edge, quartz mm 38 tall, chalcopyrite ~4 mm on edge. Mass (weight): 214 g.
(Autor: Carles Millan)
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