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Manganogrunerite

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HCH198577

Manganogrunerite

Description Tabs

Description
Locality: 
Răzoare, Maramureș County, Romania
Size Range: 
Cabinet (10-18 cm)
Size: 
10 × 9 × 5 cm
Description

Dannemorite in sprays rich in matrix.

Mineral Data
What's on the rock

Manganogrunerite

Formula: 
☐{Mn2+2}{Fe2+5}(Si8O22)(OH)2
Strunz: 
9.DE.05
Crystal System: 
Monoclinic
Hardness: 
5.0 - 6.0
Colour: 
nd
Streak: 
nd
Type Locality: 
Dannemora mine, Dannemora, Östhammar, Uppland, Sweden

Seller Information

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