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Natrodufrénite & Wavellite

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PAV981276

Natrodufrénite & Wavellite

New Discovery

Description Tabs

Description
Locality: 
Fragas da Carvalhosa Mine, Felgar, Torre de Moncorvo, Bragança District, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
1.1 × 3.3 × 1.9 cm
Description

Wonderful natrodufrénite sample!

Dozens of brown crystals, some of them with irisations, associated to wavellite aggregates.

Beautiful under the scope!

Collected: 
2023
Boxed with Label
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

Wavellite

Formula: 
Al3(PO4)2(OH,F)3·5H2O
Strunz: 
8.DC.50
Hardness: 
3.5 - 4.0
Streak: 
White.
Type Locality: 
High Down Quarry, Filleigh, North Devon, Devon, England, UK