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Polianite

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PDM785295

Polianite

Classic Locality

Description Tabs

Description
Locality: 
Kisenge Manganese Mine, Lualaba, DR Congo
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.1 × 3 × 3 cm
Description

Aggregate of black botryoidal growths of pyrolusite (variety Polianite) with tinny crystals at the surfaces of intense metallic lustre. Old specimen which locality is uncommon in collections.

Specimen from the collection of Achiel Moors, a Belgian colonist in the D.R.Congo from 1957 to 1972.

Mineral Data
What's on the rock

Polianite

Variety Of: 

Pyrolusite

Formula: 
MnO2
Strunz: 
4.DB.05
Hardness: 
2.0 - 6.5
Formula: 
morphological variety
Hardness: 
0.0

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