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Bornite Psm Chalcopyrite

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PDM628342

Bornite Psm Chalcopyrite

Pseudomorph

Description Tabs

Description
Locality: 
Kamoto Principal Mine, Kamoto, Kolwezi, Lualaba, DR Congo
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.2 × 2.8 × 2.4 cm
Largest Crystal: 
1.10cm
Description

A rare specimen from the Kamoto mine with two dull bornite crystals overgrowing chalcopyrite crystals, on white calcite matrix. They are a true perimorph, cause both minerals are still present. Highly sought-after specimen for D.R.Congo collectors.

Acquired in 1996, it is the specimen #50 of Dr. Bob Janssens (BE) collection.

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

Chalcopyrite

Formula: 
CuFeS2
Strunz: 
2.CB.10a
Crystal System: 
Tetragonal
Hardness: 
3.5 - 4.0

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