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Goethite

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FNW54913

Goethite

Description Tabs

Description
Locality: 
Tharsis, Huelva, Andalusia, Spain
Size Range: 
Thumbnail (1-3cm)
Size: 
1.9 × 2.6 × 1 cm
Largest Crystal: 
5.60cm
Description

Very bright piece of iridescent goethite crystals with its classic stalactitic-botryoidal growth.

The specimen is colourful with intense tones.

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
Fine Minerals World