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Eskolaite

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ESM569425

Eskolaite

Description Tabs

Description
Locality: 
Merume River, Kamakusa, Potaro-Siparuni Region, Guyana
Class: 
Crystal Group/Cluster
Size Range: 
Micromount (under 1cm)
Size: 
0.4 × 0.5 × 0.3 cm
Description

Lustrous black eskolaite

Mineral Data
What's on the rock

Eskolaite

Formula: 
Cr2O3
Strunz: 
4.CB.05
Crystal System: 
Trigonal
Hardness: 
8.0 - 8.5
Colour: 
Black
Streak: 
Green
Type Locality: 
Outokumpu Cu-Co-Zn-Ni-Ag-Au ore field, Eastern Finland Region, Finland