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Gratonite In Schalenblende

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CAM211926

Gratonite In Schalenblende

Ex Klaus Petitjean collection
Classic Locality

Description Tabs

Description
Locality: 
Segen Gottes Mine, Wiesloch, Baden-Württemberg, Germany
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.9 × 4.7 × 1.5 cm
Description

Spear-like, bright gray metallic, gratonite in schalenblende. An rare and very good example of this uncommon lead-sulfosalt.
Collected on June 7th, 1959 on the dumps of the Max Shaft of the Segen Gottes Mine.
Cut and polished on one side.

Mineral Data
What's on the rock

Gratonite

Formula: 
Pb9As4S15
Strunz: 
2.JB.55
Hardness: 
2.5
Streak: 
Black
Type Locality: 
Excelsior Mine, Cerro de Pasco, Pasco province, Pasco department, Peru

Schalenblende

Mixture Of: 

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Hardness: 
3.5 - 4.0

Wurtzite

Formula: 
(Zn,Fe)S
Strunz: 
2.CB.45
Hardness: 
3.5 - 4.0

Galena

Formula: 
PbS
Strunz: 
2.CD.10
Hardness: 
2.5
Cartils Minerals

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