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Berndtite

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SKY1043200

Berndtite

Type Locality

Description Tabs

Description
Locality: 
Forestville, Schuylkill County, Pennsylvania, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.7 × 1.3 × 1.2 cm
Description

Outstanding yellow crystal aggregates of the very rare tin sulphide berndtite (labeled as berndtite-C27 in the plastic box) in a contrasting grey/white matrix.

Berndtite-C27 is the polytype berndtite-4H.

Very rare mineral almost never seen in the mineral market.

Ex Vandenbroucke Museum collection from Waregem, Belgium.

Mineral Data
What's on the rock

Berndtite

Formula: 
SnS2
Strunz: 
2.EA.20
Crystal System: 
Trigonal (-2T) and Hexagonal (-4H)
Hardness: 
1.0 - 2.0
Type Locality: 
Cerro de Potosí (Cerro Rico), Potosí City, Potosí Department, Bolivia

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