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Acanthite & Native Silver

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JYJ714890

Acanthite & Native Silver

Description Tabs

Description
Locality: 
Chañarcillo, Copiapó Province, Atacama Region, Chile
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2.3 × 1.4 cm
Description

A massive aggregate of acanthite with some thick wired native silver. The label, that is dated to 1976 mentions erronously mentions proustite.

From an old collection, label depicted in the label section.

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

Silver

Formula: 
Ag
Strunz: 
1.AA.05
Crystal System: 
Isometric
Hardness: 
2.5 - 3.0
Labels
Label Images - only: Acanthite & Native Silver