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Hydrotungstite On Ferberite

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HEF748080

Hydrotungstite On Ferberite

Description Tabs

Description
Locality: 
Nyakabingo Mine, Kigali, Kigali City Province, Rwanda
Class: 
Crystals on Matrix
Size Range: 
Micromount (under 1cm)
Size: 
0.8 × 0.5 × 0.4 cm
Description

Yellow crystals of hydrotungstite on ferberite

Mineral Data
What's on the rock

Hydrotungstite

Formula: 
WO3·2H2O
Strunz: 
4.FJ.15
Hardness: 
2.0
Type Locality: 
San Antonio de Calacalani mine, Cercado Province, Oruro Department, Bolivia

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

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