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Metazeunerite Baryte Uranophane & Phosphuranylite

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Metazeunerite Baryte Uranophane & Phosphuranylite

Description Tabs

Description
Locality: 
Krunkelbach Valley, Menzenschwand, Baden-Württemberg, Germany
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.1 × 3.2 × 1.9 cm
Description

A rare association of yellowish transparent barite crystals with green meta-zeunerite. Over the meta-zeunerite is a coating of tiny yellow phosphuranylite crystals. There are several tufts of uranophane present here and there.

Mineral Data
What's on the rock

Metazeunerite

Formula: 
Cu(UO2)2(AsO4)2·8H2O
Strunz: 
8.EB.10
Hardness: 
2.0 - 2.5
Type Locality: 
Walpurgis Flacher vein, Weißer Hirsch Mine (Shaft 3), Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany

Baryte

Formula: 
BaSO4
Strunz: 
7.AD.35
Hardness: 
3.0 - 3.5
Streak: 
White

Uranophane

Formula: 
Ca(UO2)2[HSiO4]2·5H2O
Strunz: 
9.AK.15
Crystal System: 
Monoclinic
Hardness: 
2.0 - 3.0
Type Locality: 
Miedzianka (Kupferberg), Jelenia Góra District, Rudawy Janowickie Mts, Lower Silesia (Dolnośląskie), Poland

Phosphuranylite

Formula: 
(H3O)3KCa(UO2)7(PO4)4O4·8H2O
Strunz: 
8.EC.10
Hardness: 
2.5
Type Locality: 
Buchanan Mine, Waterhole Mine, (Buchanan pegmatite), Mitchell Co., North Carolina, USA
schani

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