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Proustite Pearceite & Acanthite

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SER945199

Proustite Pearceite & Acanthite

Description Tabs

Description
Locality: 
Imiter Mine, Tinghir Province, Drâa-Tafilalet Region, Morocco
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 4.5 × 3.2 cm
Description

extremely rich specimen featuring several vivid red clusters of proustite, red blades of pearceite and some lustrous black acanthite crystals

Mineral Data
What's on the rock

Proustite

Formula: 
Ag3AsS3
Strunz: 
2.GA.05
Crystal System: 
Trigonal
Hardness: 
2.0 - 2.5

Pearceite

Formula: 
[(Ag,Cu)6(As,Sb)2S7][Ag9CuS4]
Strunz: 
2.GB.15
Hardness: 
2.5 - 3.0
Streak: 
black
Type Locality: 
Mollie Gibson Mine (Molly Gibson Mine), Aspen, Aspen District (Roaring Fork District), Pitkin Co., Colorado, USA

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

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Start 18 Jan 18:00
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