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Pyrolusite

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MGR710381

Pyrolusite

Description Tabs

Description
Locality: 
Luthersteufe Mine, Schorte Valley, Oehrenstock, Langewiesen, Ilmenau, Thuringia, Germany
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.3 × 6.4 × 4.9 cm
Description

Rare pyrolusite embedded in brownish rhyolite-matrix from this very rare locality - an old manganese mine. Pyrolusite  developed lustrous sprays all over the specimen.

Mineral Data
What's on the rock

Pyrolusite

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