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Pyrolusite

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SHS58873

Pyrolusite

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Description
Locality: 
Arlesberg, Ilmenau, Thuringia, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
2.3 × 1.6 × 1.5 cm
Description

Gray shiny pyrolusite crystals on matrix

Mineral Data
What's on the rock

Pyrolusite

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