Calcite with Sphalerite

specimen number:
2312074

location:
Droujba mine, Laki, Plovdiv, Bulgaria

description:
A large double terminated crystal grouping of calcite 9.0 cm in length on a crystallized sphalerite matrix with several smaller calcite crystal groupings as well.

The Droujba Mine, located in the Laki ore district within the Rhodope Mountains of Plovdiv Province, Bulgaria, has a long history of metal extraction dating back to ancient times. Geologically, the deposit is part of a major polymetallic province hosted within metamorphic and Cenozoic volcanic- tectonic structures of the region. Hydrothermal activity channeled mineral-rich fluids through major fault zones, creating rich vein systems and replacement bodies. The underground workings have become internationally famous among mineral collectors for producing exceptional, high-luster specimens of galena, sphalerite, calcite, and crystal-clear quartz.

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