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Mineralpedia Details for Nabiasite

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Nabiasite

Nabiasite

Named for the type locality at Plan de Labasse in Nabias in Midi-Pyrenees, France. Additional localities for Nabiasite include in the Valgraveglia mine, also called the Gambatesa mine, in Liguria, Italy, and also at the Yamato mine on Amami-Oshima Island in the Kyushu Region of Japan. Nabiasite occurs as red crystals or grains in patches with rhodochrosite, friedelite, and barite. At the type locality it is found in veinlets that cross-cut a metamorphic, syngenetic  Lower Carboniferous complex of manganese ores in the historical Plan de Labasse deposit.

Ref. Minerals and their Localities, Bernard, J.H. and Hyršl, J. (2004)

Formula
BaMn9(VO4)6(OH)2 
Crystal System
Isometric 
Crystal Habit
Anhedral Grains 
Cleavage
None, None, None 
Luster
Adamantine 
Color
dark red 
Streak
dark orangish yellow 
Class
Isometric - Diploidal 
Fracture
Conchoidal 
Hardness
4-4.5 
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Nabiasite from Gambatesa mine, Reppia, Graveglia Valley, Genova prov., Liguria, Italy

Nabiasite
            from Gambatesa mine, Reppia, Graveglia Valley, Genova prov., Liguria, Italy

Deep red coatings of Nabiasite with light tan Bementite on Hausmannite. Rare vanadium mineral from a mine which has produced at least six type locality minerals.

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