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Goethite

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RBR556720

Goethite

Description Tabs

Description
Locality: 
Tharsis, Huelva, Andalusia, Spain
Class: 
Massive/Crystalline
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 3.5 × 2 cm
Description

Mostly goethite is just black, but in some cases collectors can find specimens with more than one color.This specimen shows much more than one color: orange, red, green, violet, brown, even blue. To be honest, not often a mineral shown so many colors on one specimen. 

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
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