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Braunite & Pyrolusite

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SHS1166647

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Description
Locality: 
Gremmelsbach, Triberg im Schwarzwald, Freiburg Region, Baden-Württemberg, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1.5 × 1 cm
Description

Nice braunite and pyrolusite on matrix

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

Current price

$

Starting price

$4
(reserve not met) (reserve met)

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Start 15 Feb 18:00
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