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Rankachite

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SMM720106

Rankachite

Type Locality

Description Tabs

Description
Locality: 
Clara Mine, Oberwolfach, Freiburg Region, Baden-Württemberg, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2 × 1 cm
Description

Brown-golden tufts of prismatic crystals of rankachite from the type locality. Good sample.

Boxed with Label
Mineral Data
What's on the rock

Rankachite

Formula: 
Ca0.5(V4+,V5+)(W6+,Fe3+)2O8(OH)·2H2O
Strunz: 
7.GB.25
Crystal System: 
Orthorhombic
Hardness: 
2.5
Type Locality: 
Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany

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