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Nioboixiolite-(Fe3+)

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HEF1091197

Nioboixiolite-(Fe3+)

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Description
Locality: 
In den Dellen Quarries, Niedermendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 1.1 × 0.6 cm
Description

Black crystals of nioboixiolite-(Fe3+) on matrix.

New mineral.

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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