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Chalcothallite

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ESM558492

Chalcothallite

Rare Mineral

Description Tabs

Description
Locality: 
Taseq Slope, Ilimaussaq, Narsaq, Kujalleq, Greenland
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.1 × 1.7 × 0.8 cm
Description

Lustrous black chalcothallite on matrix

Mineral Data
What's on the rock

Chalcothallite

Formula: 
Tl2(Cu,Fe)6SbS4
Strunz: 
2.BD.40
Crystal System: 
Tetragonal
Hardness: 
2.0 - 2.5
Streak: 
Black
Type Locality: 
Nakalak Mt (Nakalaq; Nakkaalaaq), Taseq area, Ilímaussaq complex, Narsaq, Kujalleq, Greenland