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Ferrarisite

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JYJ533631

Ferrarisite

Description Tabs

Description
Locality: 
Wilhelm Mine, Nentershausen, Kassel Region, Hesse, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 3 × 1.5 cm
Description

An excellent sample hosting thick crystals of the rare arsenate ferrarisite. Material was determined by the W. Simon, after whom simokolleite in parts was named.

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