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Tenorite & Malachite On Goethite

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CLB74719

Tenorite & Malachite On Goethite

Classic Locality

Description Tabs

Description
Locality: 
Wolf Mine, Herdorf, Altenkirchen, Rhineland-Palatinate, Germany
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 6.5 × 2.3 cm
Description

This is a very fine specimen with an old label, saying it is tenorite and chrysocolla. Unfortunately there is neither chrysocolla nor tenorite listed for this locality. I am sure the locality is right, but the chrysocolla must be malachite. The tenorite could be possible, as there seem to be tiny black crystals on the kidney-ore-like goethite-matrix. Perhaps a new discovery?

Mineral Data
What's on the rock

Tenorite

Formula: 
CuO
Strunz: 
4.AB.10
Crystal System: 
Monoclinic
Hardness: 
3.5
Streak: 
Black
Type Locality: 
Mt Vesuvius, Somma-Vesuvius Complex, Naples Province, Campania, Italy

Malachite

Formula: 
Cu2(CO3)(OH)2
Strunz: 
5.BA.10
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0

Goethite

Formula: 
α-Fe3+O(OH)
Strunz: 
4.00.
Crystal System: 
Orthorhombic
Hardness: 
5.0 - 5.5
Type Locality: 
Hollertszug Mine (Hollerter Zug Mine), Dermbach, Herdorf, Siegerland, Rhineland-Palatinate, Germany

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