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Calcite

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CR116707

Calcite

Description Tabs

Description
Locality: 
Herja Mine, Chiuzbaia, Baia Mare, Maramureș County, Romania
Size Range: 
Cabinet (10-18 cm)
Size: 
14.5 × 7 × 3 cm
Description

This is a real curious calcite specimen:

A cluster of tabular calcite crystals all around the specimen (floater), but one half of the specimen is white, the other half is black (caused by inclusions of boulangerite).

These specimens are extremely rare and nowadays extremely hard to get.

Mineral Data
What's on the rock

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White