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Manganite

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Manganite

Classic Locality

Description Tabs

Description
Locality: 
Montreal Mine, Gogebic Range, Iron County, Wisconsin, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 5 × 3.5 cm
Weight: 
190.00gr
Description

specimen with many very nice black crystals of manganite on matrix

Mineral Data
What's on the rock

Manganite

Formula: 
Mn3+O(OH)
Strunz: 
4.FD.15
Hardness: 
4.0
Type Locality: 
Manganese deposit, Ilfeld, Nordhausen, Harz, Thuringia, Germany

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