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Dufrénite

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WND588119

Dufrénite

Classic Locality

Description Tabs

Description
Locality: 
Hühnerkobel Mine, Rabenstein, Zwiesel, Lower Bavaria, Bavaria, Germany
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.2 × 4.1 × 2.3 cm
Description

Black to brown coloured, fibrous-crystalline masses of phosphate dufrenite on matrix. In my whole time as mineral collector ( ~45 years) I have not seen more than 10 specimensof this species from this locale on the mineral shows. Specimen comes with an old label.

Mineral Data
What's on the rock

Dufrénite

Formula: 
Ca0.5Fe2+Fe3+5(PO4)4(OH)6·2H2O
Strunz: 
8.DK.15
Hardness: 
3.5 - 4.5
Streak: 
Green
Type Locality: 
Anglar, Haute-Vienne, Limousin, France
Wendel Minerals

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