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Goethite

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Goethite

Description Tabs

Description
Locality: 
Crystal Peak, Teller County, Colorado, United States of America
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 5 × 4 cm
Description

A chunk of pink orthoclase feldspar with a thick vein of metallic silver sprays of goethite to over 1cm.

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
Surrey Minerals