Calcite with Jamesonite, Quartz

specimen number:
2312176

location:
Herja mine, Maramures Co., Romania

description:
A crystallized ball of sparkling calcite, this approximately half black and half white in color, with quartz. The black color is due to inclusions of jamesonite. In great condition.

The Herja Mine, located in Maramures County, Romania, is a historic underground mining site with centuries of activity focused on base and precious metal extraction. Geologically, the deposit is situated within the Neogene volcanic belt of the Eastern Carpathians, where complex hydrothermal veins cutting through sedimentary and volcanic host rocks formed rich epithermal orebodies. The mineralizing solutions deposited significant quantities of lead, zinc, and copper sulfides alongside gangue minerals. The underground stopes and vein systems are internationally renowned among mineral collectors for producing crystallized specimens, most notably large, well-formed groups of stibnite crystals associated with quartz, sphalerite, and marcasite.

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