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Walpurgite & Mixite

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CLB138416

Walpurgite & Mixite

ex coll. Gruber
New Discovery

Description Tabs

Description
Locality: 
Alt St Joseph Mine, Wittichen, Schenkenzell, Freiburg Region, Baden-Württemberg, Germany
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 3.5 × 3 cm
Description

Excellent free-standing acicular and platy walpurgite crystals and pale blueish-green mixite. I bought this as a new find. Similar looking specimen are known from the Schmiedestollen dumps near Wittichen.

Mineral Data
What's on the rock

Walpurgite

Formula: 
(BiO)4(UO2)(AsO4)2·3H2O
Strunz: 
8.EA.05
Hardness: 
3.5
Type Locality: 
Walpurgis Flacher vein, Weißer Hirsch Mine (Shaft 3), Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany

Mixite

Formula: 
BiCu6(AsO4)3(OH)6·3H2O
Strunz: 
8.DL.15
Crystal System: 
Hexagonal
Hardness: 
3.0 - 4.0
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Seller Information

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