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Goethite Psm Marcasite

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TWH584161

Goethite Psm Marcasite

Description Tabs

Description
Locality: 
Farafra Oasis, New Valley, Egypt
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.1 × 3 × 2.3 cm
Description

a group of axe shaped and cubic form of marcasite stacked together replaced by goethite from famous Farafra Oasis in Egypt.

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

Marcasite

Formula: 
FeS2
Strunz: 
2.EB.10a
Crystal System: 
Orthorhombic
Hardness: 
6.0 - 6.5
JohnTu's Attic