Calcite

specimen number:
9892135

location:
Dal'negorsk, Primorskiy Kray, Russia

description:
Colorless flattened rhombohedral crystals of calcite standing up from matrix and measuring to 4.0 cm across. In good condition, brightly fluorescent under longwave ultraviolet light. Displays nicely.

Dalnegorsk, located in the Primorsky Krai of the Russian Far East, is a world-famous mining district with a history of industrial metal extraction dating back to the late 19th century under the entrepreneur Julius Brynner. Geologically, the area is dominated by complex skarn deposits formed through the intrusion of Cretaceous and Paleogene magmatic rocks into Triassic and Jurassic carbonate and sedimentary sequences, creating ideal conditions for large-scale hydrothermal mineralization. Mineralogically, the district is celebrated globally for its stunning, large-scale specimen production, most notably pristine crystals of calcite, quartz, sphalerite, galena, and a wide variety of borate and skarn minerals that remain staples of major museum collections worldwide.

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