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Braunite In Pyrolusite

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SHS664597

Braunite In Pyrolusite

Description Tabs

Description
Locality: 
Oehrenstock, Langewiesen, Ilmenau, Thuringia, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 2.4 × 1.6 cm
Description

Nice braunite crystals on pyrolusite

Mineral Data
What's on the rock

Braunite

Formula: 
Mn2+Mn3+6(SiO4)O8
Strunz: 
9.AG.05
Hardness: 
6.0 - 6.5
Streak: 
Black
Type Locality: 
Oehrenstock (Öhrenstock), Langewiesen, Ilmenau District, Thuringian Forest, Thuringia, Germany

Pyrolusite

Formula: 
MnO2
Strunz: 
4.DB.05
Hardness: 
2.0 - 6.5
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