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Goethite

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TPX1062071

Description Tabs

Description
Locality: 
Tordelrábano, Guadalajara, Castilla La Mancha, Spain
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.2 × 1.2 cm
Weight: 
18.00gr
Description

Spectacular group of acicular goethite crystals on matrix from this triasic Spanish site.

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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