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Proustite Pearceite & Xanthoconite

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SER833179

Proustite Pearceite & Xanthoconite

Description Tabs

Description
Locality: 
Imiter Mine, Tinghir Province, Drâa-Tafilalet Region, Morocco
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.8 × 3.6 × 2.1 cm
Description

a very rich specimen featuring several red clusters of proustite, tiny red lamellae of pearceite and orange xanthoconite

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

Xanthoconite

Formula: 
Ag3AsS3
Strunz: 
2.GA.10
Crystal System: 
Monoclinic
Hardness: 
2.0 - 3.0
Type Locality: 
Himmelsfürst Mine, Brand-Erbisdorf, Freiberg District, Erzgebirge, Saxony, Germany