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Bornite

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MGR657019

Bornite

Description Tabs

Description
Locality: 
Cavnic Mine, Maramureș County, Romania
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.2 × 2 cm
Description

An isolated, well developed bornite crystal exposed at the top of the specimen. The matrix is covered with tiny, sparkling quartz crystals - really a nice contrast. Minor chalcopyrite with iridiscent blue layer are scattered all over. No significant damages to report.

Mineral Data
What's on the rock

Bornite

Formula: 
Cu5FeS4
Strunz: 
2.BA.15
Crystal System: 
Tetragonal
Hardness: 
3.0
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic