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Goethite

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MMM85607

Goethite

Description Tabs

Description
Locality: 
Tregavarah Downs Mine, Drift, Cornwall, United Kingdom
Size Range: 
Small cabinet (7-10 cm)
Size: 
5 × 9 × 3 cm
Description

Bright compact banded goethite with a small amount of quartz matrix.

A relatively new specimen collected this year.

Nice example.

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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