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Bementite

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SHS140802

Bementite

Description Tabs

Description
Locality: 
Harstigen Mine, Pajsberg, Persberg, Filipstad, Värmland County, Sweden
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 1.2 × 0.9 cm
Description

Brown bementite in matrix

Mineral Data
What's on the rock

Bementite

Formula: 
Mn7Si6O15(OH)8
Strunz: 
9.EE.05
Crystal System: 
Monoclinic
Hardness: 
6.0
Streak: 
White
Type Locality: 
Trotter Mine (Lehigh Mine), Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA