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Tschermigite & Aluminite

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SHS134486

Tschermigite & Aluminite

Description Tabs

Description
Locality: 
Kladno District, Central Bohemian Region, Czech Republic
Size Range: 
Thumbnail (1-3cm)
Size: 
2.3 × 1.5 × 1.5 cm
Description

Tschermigite and alunite on matrix

Mineral Data
What's on the rock

Tschermigite

Formula: 
(NH4)Al(SO4)2·12H2O
Strunz: 
7.CC.20
Hardness: 
1.5 - 2.0
Type Locality: 
Cermniky (Tschermig), Kadaň (Kaaden), Ústí Region, Bohemia (Böhmen; Boehmen), Czech Republic

Aluminite

Formula: 
Al2(SO4)(OH)4·7H2O
Strunz: 
7.DC.05
Crystal System: 
Monoclinic
Hardness: 
1.0 - 2.0
Streak: 
White
Type Locality: 
Halle, Saxony-Anhalt, Germany