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Pyrolusite

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PDM632866

Pyrolusite

Description Tabs

Description
Locality: 
Oehrenstock, Langewiesen, Ilmenau, Thuringia, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 2.9 × 2.9 cm
Largest Crystal: 
1.80cm
Description

Terminated black lustrous crystals of pirolusite on calcite matrix from Öhrenstock, a less known german locality. The label reads pirolusite after manganite, but we do not see any characteristics of pseudomorphism.

Ex. Manfred Fabig specimen #582, who obtained it from Gerd Eschrich on July 4th, 1991.

Mineral Data
What's on the rock

Pyrolusite

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

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