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Acanthite

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PJM85079

Acanthite

Ex J & S Mommers Collection.

Description Tabs

Description
Locality: 
Hongda Mine, Xiaoqinggou, Lingqiu County, Datong, Shanxi Province, China (Peoples Republic)
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.3 × 2.4 × 1.9 cm
Description

Fine acanthite specimens have been known from this locality for the past several years. Rarely are the crystals super sharp. The example shown here exhibits excellent sharp both cubic and octhedral crystals of metallic semi-lustrous gray acanthite scattered over crystalline acanthite and breccia matrix.

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
Earthstones Australia

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