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Rauenthalite & Picropharmacolite

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JYJ214125

Rauenthalite & Picropharmacolite

Description Tabs

Description
Locality: 
Ste Marie-aux-Mines, Haut-Rhin, Grand Est, France
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.3 × 1.5 cm
Description

Very fine specimen hosting radiating picropharmacolite and rauenthalite, both arsenates from the ancient mining area in St. Marie aux Mines.

Mineral Data
What's on the rock

Rauenthalite

Formula: 
Ca3(AsO4)2·10H2O
Strunz: 
8.CJ.40
Hardness: 
2.0 - 0.0
Streak: 
Colorless
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