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Goethite Var Kidney Ore

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CLB207447

Goethite Var Kidney Ore

ex collection Franz Höchster
Classic Locality

Description Tabs

Description
Locality: 
Nassau, Rhineland-Palatinate, Germany
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 3.2 × 2.4 cm
Description

A very nice, lustrous 'glaskopf' (German syn. of 'kidney ore').

Mineral Data
What's on the rock

Goethite

Formula: 
α-Fe3+O(OH)
Strunz: 
4.00.
Crystal System: 
Orthorhombic
Hardness: 
5.0 - 5.5
Type Locality: 
Hollertszug Mine (Hollerter Zug Mine), Dermbach, Herdorf, Siegerland, Rhineland-Palatinate, Germany

Kidney Ore

Variety Of: 

Hematite

Formula: 
Fe2O3
Strunz: 
4.CB.05
Hardness: 
5.0 - 6.0
Hardness: 
0.0

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