Chalcopyrite Specimen Russia Dalnegorsk

$16.00

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Description

CHALCOPYRITE SPECIMEN

This is the raw chalcopyrite specimen with calcite and sphalerite. Dimensions: 1.9 x 1.2 x 0.6″ (4.8 x 3 x 1.5cm). Weight – 0.7oz (20 grams). Origin: Russia, Dalnegorsk.

Some information about chalcopyrite:

Chalcopyrite is a copper iron sulfide mineral and the most abundant copper ore mineral. It has the chemical formula CuFeS2 and crystallizes in the tetragonal system. It has a brassy to golden yellow color and a hardness of 3.5 to 4 on the Mohs scale. Its streak is diagnostic as green tinged black.

On exposure to air, chalcopyrite tarnishes to a variety of oxides, hydroxides, and sulfates. Is rarely found in association with native copper. Chalcopyrite is a conductor of electricity.

The name chalcopyrite comes from the Greek words chalkos, which means copper, and pyrites‘, which means striking fire. It was sometimes historically referred to as “yellow copper”.

Additional information

Weight 20 g