A wonderful example from the Madan ore field in Bulgaria consisting of terminated Quartz crystals along with shiny golden Pyrite crystals all over the specimen.
Madan, in the Rhodope Mountains of Bulgaria, just north of the frontier with Greece, is an ancient ore-miners’ settlement. The history of mining in the Madan region extends back at least as far as the Thracians in the fifth century B.C. where the extraction of lead ore began.
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Негізгі бет Quartz crystals and Pyrite mineral specimen from the Madan field in Bulgaria.
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