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Acanthite

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JYJ542263

Acanthite

Description Tabs

Description
Locality: 
Rejang Lebong District, Bengkulu Province, Indonesia
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 4.7 × 3.8 cm
Description

A very good specimen hosting acanthite on kutnahorite in a sulfidic matrix. The acanthite is partly irdiscendent and encrusted with another sulfidic phase. 

Mineral Data
What's on the rock

Acanthite

Formula: 
Ag2S
Strunz: 
2.BA.35
Crystal System: 
Monoclinic - Prismatic
Hardness: 
2.0 - 2.5
Streak: 
lead grey
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic