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Goethite Psm Gypsum

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PFK735893

Goethite Psm Gypsum

Classic Locality

Description Tabs

Description
Locality: 
Hilarion Mine, Hilarion, Kamariza, Agios Konstantinos, Lavrion District, Attiki Prefecture, Greece
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
16.6 × 7.4 × 4.5 cm
Description

Interesting and unusual pseudomorph of goethite after Selenite. The goethite/limonite shows various color tones and forms its own aggregates on the side of the pseudomorphed selenite crystal.

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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