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Polybasite

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CHA770365

Polybasite

Classic Locality

Description Tabs

Description
Locality: 
Masaloni Mine, San Vito, Sarrabus, South Sardinia Province, Sardinia, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 2.3 × 2.1 cm
Description

specimen with a very good gray squat metallic exagonal crystal of polybasite on matrix

For value the dimension of the crystals I remenber you that the photos of my specimens are taken at only 20/40 enlargement!

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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