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Guérinite Sainfeldite & Picropharmacolite

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SMM710149

Guérinite Sainfeldite & Picropharmacolite

Description Tabs

Description
Locality: 
Hilfe Gottes Mine, Ilfeld, Harz, Thuringia, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 3.5 × 3 cm
Description

White tabular crystals of guerinite, pink spherical groups of sainfeldite crystals and white picropharmacolite are scattered on one side of this good specimen.

Boxed with Label
Mineral Data
What's on the rock

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

Sainfeldite

Formula: 
CaCa2Ca2(AsO4)2(HAsO4)2·4H2O
Strunz: 
8.CB.10
Crystal System: 
Monoclinic
Hardness: 
4.0
Streak: 
White
Type Locality: 
Gabe Gottes Mine (incl. Giftgrube), Neuenberg, Ste Marie-aux-Mines (Markirch), Haut-Rhin, Alsace, France

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

Seller Information

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