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Digenite Psm Pyrite

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RSL665102

Digenite Psm Pyrite

Pseudomorph

Description Tabs

Description
Locality: 
Sellent River, Chella, Valencia, Valencian Community, Spain
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.1 × 4.4 × 2.8 cm
Largest Crystal: 
0.30cm
Description

These specimens are showing a complete pseudomorph of digenite (trigonal, Cu9S5) after pyrite (cubic, FeS2). We can see that crystals preserve the original cubic shape, with slightly curved edges and faces partially covered with greenish-colored malachite. A Spanish curiosity for pseudomorph lovers.

Mineral Data
What's on the rock

Digenite

Formula: 
Cu9S5
Strunz: 
2.BA.10
Hardness: 
2.5 - 3.0
Type Locality: 
Copper slate deposits, Sangerhausen, Saxony-Anhalt, Germany

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5