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Natrodufrénite

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CHP1075121

Natrodufrénite

Classic Locality

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Description
Locality: 
Fragas da Carvalhosa Mine, Felgar, Torre de Moncorvo, Bragança District, Portugal
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.7 × 1.2 × 0.9 cm
Description

specimen with many fantastic brownish perfect crystals of natrodufrenite on matrix.

c. 8935

Mineral Data
What's on the rock

Natrodufrénite

Formula: 
NaFe2+Fe3+5(PO4)4(OH)6·2H2O
Strunz: 
8.DK.15
Hardness: 
3.5 - 4.5
Type Locality: 
Pluherlin Castle, Rochefort-en-Terre, Morbihan, Brittany, France

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