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Långbanite

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BCK639050

Långbanite

Type Locality

Description Tabs

Description
Locality: 
Långban, Filipstad, Värmland County, Sweden
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
0.7 × 0.6 × 1.2 cm
Description

You are bidding on a small sample with some fantastic prisms of langbanite in a cavity with unknown groups of brown barrel shaped crystals. Langbanite from cavities is extremely rare at the locality! The groups of brown crystals would benefit from analysis. Former William Henderson collection. 

Mineral Data
What's on the rock

Långbanite

Formula: 
(Mn2+,Ca)4(Mn3+,Fe3+)9Sb5+(SiO4)2O16
Strunz: 
9.AG.10
Hardness: 
6.5
Colour: 
black
Streak: 
brown
Type Locality: 
Långban, Filipstad, Värmland, Sweden

Seller Information

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