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Nioboixiolite-(Fe3+)

Type Locality
In den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
Mineral Data
(Nb0.5Fe3+0.5)O2
Strunz: 
4.DB.25
Physical Properties
Colour: 
Black
Crystal System: 
Orthorhombic
Streak: 
Black
Hardness: 
5
Tenacity: 
Brittle
Synonyms
Synonyms: 
IMA2024-057