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Polybasite

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TPX614536

Polybasite

Rare Mineral

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Description
Locality: 
Bouismas Mine, Bou Azzer, Tazenakht, Ouarzazate Province, Drâa-Tafilalet Region, Morocco
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.6 × 4.6 × 2.7 cm
Weight: 
105.00gr
Description

Very interesting specimen of polybasite crystals on calcite matrix. the merchant who sold me the lot of specimens, told me it was Acanthite, but the shape of the crystals in type of hexagonal sheets gives me to understand that the specimen is polybasite, perhaps it may also be Acanthite psm after Polybasite, but this is only an appreciation of mine because the specimens are not analyzed.

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

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Start 12 Jun 18:00
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Shipping Information

Postage Area Price
Spain
8
Europe
12
America
$19
Rest of world
18.50

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