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Phosphuranylite Uranophane Metatorbernite & Metanováčekite

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SCH108395

Phosphuranylite Uranophane Metatorbernite & Metanováčekite

Description Tabs

Description
Locality: 
Krunkelbach Valley, Menzenschwand, Baden-Württemberg, Germany
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 3 × 1.8 cm
Description

Beautiful study specimen of excellent rosettes of deep yellow Phosphuranylite accented by epitactic green Metorbernite in some crystal faces. Other part of the matrix shows the same combo plus some yellow Uranophane sprays. Crust of small Novácekite crystals most likely dehydrated to Metanovácekite are covering a small part. Interesting and very photogenic!

 

Mineral Data
What's on the rock

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

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

Metatorbernite

Formula: 
Cu(UO2)2(PO4)2·8H2O
Strunz: 
8.EB.10
Hardness: 
2.5
Type Locality: 
Schneeberg District, Erzgebirge, Saxony, Germany

Metanováčekite

Formula: 
Mg(UO2)2(AsO4)2·4-8H2O
Strunz: 
8.EB.10
Hardness: 
2.5
Colour: 
yellow
Type Locality: 
Anton Mine (St. Anton Mine), Heubach Valley, Wittichen, Schenkenzell, Black Forest, Baden-Württemberg, Germany
schani

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