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Ullmannite & Sphalerite

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SER587455

Ullmannite & Sphalerite

Description Tabs

Description
Locality: 
Giovanni Bonu Mine, San Vito, Sarrabus, South Sardinia Province, Sardinia, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.1 × 2 × 0.6 cm
Description

A tiny cluster featuring grey crystals of ullmannite with red sphalerite

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

Sphalerite

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