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Pyrosmalite-(Fe)

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CR17489

Pyrosmalite-(Fe)

Rare Mineral

Description Tabs

Description
Locality: 
Nordmark, Filipstad, Värmland County, Sweden
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 3.5 × 3.5 cm
Description

SUPERB specimen for the species, with sharp hexagonal crystals and excellent slightly iridescent brown colour to the crystals.

Many have pretty good lustre, as well.

Crystals to 3-4 mm in size make this old timer not only a significant specimen but an unusually attractive example, as well.

Mineral Data
What's on the rock

Pyrosmalite-(Fe)

Formula: 
(Fe,Mn)8Si6O15(OH,Cl)10
Strunz: 
9.EE.10
Hardness: 
4.5
Type Locality: 
Pegmont Pb-Zn deposit, Cloncurry District, Mount Isa - Cloncurry area, Queensland, Australia