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Acanthite & Polybasite

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SHS27225

Acanthite & Polybasite

Description Tabs

Description
Locality: 
Sauberg Mine, Ehrenfriedersdorf, Erzgebirge, Saxony, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
2.1 × 1.7 × 1.2 cm
Largest Crystal: 
0.60cm
Description

Gray acanthite crystals and polybasite

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

Polybasite

Formula: 
[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
Strunz: 
2.GB.15
Crystal System: 
Monoclinic - Prismatic
Hardness: 
2.5 - 3.0
Streak: 
black