Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Polybasite & Pearceite

Views:
Watches:
SER523124

Polybasite & Pearceite

Rare Mineral

Description Tabs

Description
Locality: 
Imiter Mine, Tinghir Province, Drâa-Tafilalet Region, Morocco
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.5 × 1.5 cm
Description

Grey metallic, exagonal crystals of polybasite on acanthite with minor red crystals of pearceite

Mineral Data
What's on the rock

Polybasite

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

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