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Cuprosklodowskite Jarosite & Gypsum

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UMM706117

Cuprosklodowskite Jarosite & Gypsum

Radioactive

Description Tabs

Description
Locality: 
Uranus Mine, Kleinrückerswalde, Annaberg-Buchholz, Erzgebirge, Saxony, Germany
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 3 × 1.5 cm
Description

This is a little specimen of Gneise with Cuprosklodowskite (pale green), Jarosite (yellow - brown) and Gypsum (white) on the surface.

The Cuprosklodowskite and Jarosite was analysed by EDX / Dr. Bär Bad Elster.

That stone comes from the old Uranium and Silvermine "Uranus" near Annaberg Buchholz / Saxony. (Himmlisch Heer vein)

Mineral Data
What's on the rock

Cuprosklodowskite

Formula: 
Cu(UO2)2[HSiO4]2·6H2O
Strunz: 
9.AK.10
Hardness: 
4.0
Type Locality: 
Kalongwe deposit, Katanga (Shaba), Democratic Republic of Congo (Zaïre)

Jarosite

Formula: 
KFe3+ 3(SO4)2(OH)6
Strunz: 
7.BC.10
Crystal System: 
Trigonal - Pyramidal Class
Hardness: 
2.5 - 3.5
Type Locality: 
Jaroso Ravine, Sierra Almagrera, Cuevas del Almanzora (Cuevas de Vera), Almería, Andalusia, Spain

Gypsum

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

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