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Pharmacolite Picropharmacolite & Guérinite

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SHS210340

Pharmacolite Picropharmacolite & Guérinite

Description Tabs

Description
Locality: 
Giftgrube Mine, Neuenberg, Ste Marie-aux-Mines, Haut-Rhin, Grand Est, France
Size Range: 
Thumbnail (1-3cm)
Size: 
2.1 × 1.1 × 1.1 cm
Description

 Pharmacolite and picropharmacolite and guerinite on matrix

Mineral Data
What's on the rock

Pharmacolite

Formula: 
Ca(HAsO4)·2H2O
Strunz: 
8.CJ.50
Crystal System: 
Monoclinic
Hardness: 
2.0 - 2.5
Streak: 
White
Type Locality: 
Sophia Mine, Böckelsbach valley, Wittichen, Schenkenzell, Black Forest, Baden-Württemberg, Germany

Picropharmacolite

Formula: 
Ca4Mg(AsO4)2(HAsO4)2·11H2O
Strunz: 
8.CH.15
Crystal System: 
Monoclinic Needles and encrustations
Hardness: 
1.0 - 2.0
Streak: 
White
Type Locality: 
Ore dumps, Richelsdorf Smelter, Süss, Richelsdorf District, Hesse, Germany

Guérinite

Formula: 
Ca5(AsO4)2(HAsO4)2·9H2O
Strunz: 
8.CJ.75
Crystal System: 
Monoclinic
Hardness: 
1.5
Colour: 
Colorless
Streak: 
White
Type Locality: 
Daniel Mine (St. Daniel Mine), Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany