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Polybasite

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CR593863

Polybasite

Description Tabs

Description
Locality: 
La Sirena Mine, Guanajuato, Guanajuato Municipality, Guanajuato, Mexico
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.3 × 1.4 cm
Description

From the famous Level 590 in the La Sirena Mine comes this very rich Polybasite specimen. With tiny acanthite cubes.

Polibasite formes typical tabular microcrystals all over the specimen.

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