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Goethite Psm Pyrite

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MGR704163

Goethite Psm Pyrite

Description Tabs

Description
Locality: 
Pelican Point, Utah County, Utah, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.6 × 3.8 × 3.7 cm
Description

A fine sample from this very prominent US classic locality. The crystals are goethite replacing pyrite. The crystals are sharp, partly glossy with attractive texture. The specimen is developed as floater and looks fine in each angle. During the years this material became more and more rare, so hard to obtain in our days. No significant damages to report, looks nice in each angle.

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

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5