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Ullmannite With Tetrahedrite

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SCH201268

Ullmannite With Tetrahedrite

Description Tabs

Description
Locality: 
Nueva Virginia Mine, Lanzuela, Teruel, Aragón, Spain
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.2 × 2.7 × 2 cm
Description

Excellent well-developed ullmannite penetration twins crystals are scattered over matrix associated with bright tetrahedrite crystals.The crystals of both species are just under 1mm and looks beautiful under the scope!

Mineral Data
What's on the rock

Ullmannite

Formula: 
NiSbS
Strunz: 
2.EB.25
Crystal System: 
Isometric
Hardness: 
5.0 - 5.5
Type Locality: 
Storch und Schöneberg Mine, Gosenbach, Siegerland, North Rhine-Westphalia, Germany

Tetrahedrite

Formula: 
Cu6[Cu4(Fe,Zn)2]Sb4S13
Strunz: 
2.GB.05
Hardness: 
3.5 - 4.0
schani

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