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Krettnichite

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JYJ787117

Krettnichite

Description Tabs

Description
Locality: 
Manganese Mine, Krettnich, Merzig-Wadern, Saarland, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.3 × 2.2 × 1.4 cm
Description

Black krettnichite groups associated with manganite from the Krettnich manganes mine, Germany. 

 

Mineral Data
What's on the rock

Krettnichite

Formula: 
(Pb,Sr)(Mn3+,Co)2(VO4)2·2(OH,H2O)
Strunz: 
8.CG.15
Crystal System: 
Monoclinic
Hardness: 
4.5
Streak: 
Brown
Type Locality: 
Manganese mine (incl. Johann Shaft; Jakob Adit), Krettnich, Wadern, Saarland, Germany