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Polybasite

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CAM64969

Polybasite

Description Tabs

Description
Locality: 
San Martín Mine, Mazapil, Mazapil Municipality, Zacatecas, Mexico
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.8 × 4.5 × 2.5 cm
Largest Crystal: 
0.30cm
Description

Excellent sample of polybasite from Mexico with a good coverage of sharp, black, very lustrous, well-formed pseudo-hexagonal crystals up to 3 mm on 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
Cartils Minerals

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