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Goethite

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RPL521401

Goethite

Classic Locality

Description Tabs

Description
Locality: 
Royal Restormel Mine, Lostwithiel, Cornwall, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 6 × 3 cm
Largest Crystal: 
0.10cm
Weight: 
120.00gr
Description

Velvety micro goethite crystals cover the upper surface and a couple of smaller vugs in the quartz and goethite matrix. There are a few clear small quartz crystals on the goethite and lining other vugs. In a couple of areas at the edge of the main cavity the goethite reveals the typical 'wood iron' rosettes of brown and golden goethite. There is no damage and the specimen displays well.

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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