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Goethite

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BMM706490

Goethite

Description Tabs

Description
Locality: 
Tharsis, Huelva, Andalusia, Spain
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.7 × 4.7 × 3.3 cm
Description

A plate of botryoidal aggregate with intense, metallic-iridescent patinas, very bright and showing strongly contrasting coloration. With intense different red shades, green, yellowish and orange shades. The goethite is characterized by its fantastic color – much better in person!

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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