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Pyrolusite & Braunite

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SHS80372

Pyrolusite & Braunite

Description Tabs

Description
Locality: 
Jüchnitzgrund, Elgersburg, Ilmenau, Thuringia, Germany
Size Range: 
Cabinet (10-18 cm)
Size: 
13 × 10.2 × 8.2 cm
Description

Pyrolusite and braunite in matrix

Mineral Data
What's on the rock

Pyrolusite

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

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
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