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Lautite On Tennantite

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CR755167

Lautite On Tennantite

Rare Mineral
Analysed

Description Tabs

Description
Locality: 
Mundo Nuevo Mine, Huamachuco, Libertad Department, Peru
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 2.7 × 2.3 cm
Description

Very well defined Lautite crystals and radial growths, with a considerable length for this very rare sulphoarsenide.

They are implanted on the faces of very sharp Tennantite crystals with minor Quartz and Pyrite.

Found in 11/2015

Mineral Data
What's on the rock

Lautite

Formula: 
CuAsS
Strunz: 
2.CB.40
Hardness: 
3.5
Type Locality: 
Rudolph Shaft (Shaft 45), Lauta, Marienberg District, Erzgebirge, Saxony, Germany

Tennantite

Formula: 
Cu6[Cu4(Fe,Zn)2]As4S13
Strunz: 
2.GB.05
Crystal System: 
Isometric
Hardness: 
3.0 - 4.5
Type Locality: 
Cornwall, England, UK