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Polybasite

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JYJ515345

Polybasite

Description Tabs

Description
Locality: 
Hodruša-Hámre, Žarnovica County, Banská Bystrica, Slovakia (Slovak Republic)
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.2 × 3.5 × 2.5 cm
Description

A very rich specimen hosting platy polybasite and stephanite in cavernous matrix. 

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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