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Nioboixiolite-(Fe3+)

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GFM1168121

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Description
Locality: 
Muiâne Pegmatite, Alto Ligonha District, Zambezia Province, Mozambique
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
1 × 0.6 × 0.5 cm
Description

The new, rare Niobium-Tantalum-Iron Oxide forms a black metallic crystal aggregate of inter-grown prismatic crystals. Old, newly examined samples, found in the 1990s

Mineral Data
What's on the rock

Nioboixiolite-(Fe3+)

Formula: 
(Nb0.5Fe3+0.5)O2
Strunz: 
4.DB.25
Crystal System: 
Orthorhombic
Hardness: 
5
Colour: 
Black
Streak: 
Black
Type Locality: 
In den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany

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Start 26 Feb 18:00
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Germany
5.50
Europ
8.50
International
$12.50

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