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Ferrarisite & Guérinite & Pharmacolite

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SHS753814

Ferrarisite & Guérinite & Pharmacolite

Description Tabs

Description
Locality: 
Wilhelm Mine, Nentershausen, Kassel Region, Hesse, Germany
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 3 × 1.8 cm
Description

Ferrarisite and guerinite and pharmacolite on matrix

Mineral Data
What's on the rock

Ferrarisite

Formula: 
Ca5(AsO4)2(HAsO4)2·9H2O
Strunz: 
8.CJ.30
Hardness: 
0.0
Streak: 
White
Type Locality: 
Gabe Gottes Mine (incl. Giftgrube), Neuenberg, Ste Marie-aux-Mines (Markirch), Haut-Rhin, Alsace, France

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

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