Calcite with Chalcopyrite, Pyrite

specimen number:
2072239

location:
Boldut Mine, Cavnic, Maramures Co., Romania

description:
Thin snow white platy crystals of calcite across the front of matrix with crystallized pyrite and quartz. In good condition. Nice large cabinet piece from this famous locality.

The Boldut Mine, situated near the town of Cavnic in the Maramures County of northern Romania, is a legendary locality within the Baia Mare mining district. Geologically, the deposit is part of a Neogene volcanic arc where hydrothermal activity produced a complex system of epithermal veins hosted in andesitic and rhyolitic rocks. The mine is world-famous for its aesthetic mineral specimens, particularly its delicate pink rhodochrosite in saddle-shaped crystals, lustrous black sphalerite, and intricate groupings of quartz and calcite. Historically, mining in the Cavnic area dates back to the 14th century, but the Boldut sector saw its most significant industrial development during the 19th and 20th centuries under state-run operations. Large-scale extraction of lead, zinc, silver, and gold continued throughout the communist era until the general decline of the Romanian mining industry led to the mine's closure in 2006. Despite the cessation of commercial ore production, Boldut remains a hallmark name for collectors due to the high quality and distinct morphology of the crystallized minerals recovered during its decades of operation.

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