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Bornite

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JYJ727776

Bornite

Description Tabs

Description
Locality: 
Carn Brea Mine, Illogan, Cornwall, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.3 × 5.6 × 3 cm
Description

Historic sample hosting iridescendent bornite crystals on porous quartz. Specimen has several glued numbers on the back. 

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