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Ferberite Psm Scheelite

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PDM748201

Ferberite Psm Scheelite

Pseudomorph

Description Tabs

Description
Locality: 
Bugarama Mine, Northern Province, Rwanda
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.2 × 0.8 cm
Description

Sharp pseudo-octahedral crystal of scheelite that has been completely replaced by black porous microcrystalline ferberite, a reinite pseudomorph, on a small quartz matrix.

It was collected in 1969 by Jacques Deblandre at the Bugarama pegmatite (Rwanda).

Mineral Data
What's on the rock

Ferberite

Formula: 
FeWO4
Strunz: 
4.DB.30
Crystal System: 
Monoclinic
Hardness: 
4.0 - 4.5
Type Locality: 
Niña Mine, Sierra Almagrera, Cuevas del Almanzora (Cuevas de Vera), Almería, Andalusia, Spain

Scheelite

Formula: 
Ca(WO4)
Strunz: 
7.GA.05
Crystal System: 
Tetragonal
Hardness: 
4.5 - 5.0
Streak: 
White
Type Locality: 
Bispbergs Klack, Säter, Dalarna, Sweden

Seller Information

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