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Keramohalite Alunogen

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MNR26924

Keramohalite Alunogen

Classic Locality

Description Tabs

Description
Locality: 
Dubník, Červenica, Prešov County, Prešov Region, Slovakia (Slovak Republic)
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
10.4 × 6 × 5.2 cm
Description

Keramohalite (synonymum for Alunogen) sample from old opal mines at Dubnik. Alunogen is hydrated aluminium sulfate forming clusters of tiny crystals/masses.

Ex. collection of Milan Okruhlica

 

 

Mineral Data
What's on the rock

Keramohalite

Synonym Of: 

Alunogen

Formula: 
Al2(SO4)3·17H2O
Strunz: 
7.CB.45
Hardness: 
1.5 - 2.0

Manganoan Pickeringite

Hardness: 
0.0

Alunogen

Formula: 
Al2(SO4)3·17H2O
Strunz: 
7.CB.45
Crystal System: 
Trigonal
Hardness: 
1.5 - 2.0
Streak: 
White