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Goethite Psm Gypsum

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CLB88036

Goethite Psm Gypsum

Pseudomorph

Description Tabs

Description
Locality: 
Lavrion District Mines, Attiki Prefecture, Greece
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 9 × 6.8 cm
Description

Wonderful sample of the famous classic goethite pseudomorphs after gypsum from Lavrion.

This specimen also shows botryoidal goethite (kidney ore) at the sides and backside.

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

Gypsum

Formula: 
CaSO4·2H2O
Strunz: 
7.CD.40
Hardness: 
2.0
Streak: 
White.

Seller Information

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