Namibite

vanadate

hydrothermal

Formula: Cu(BiO)2(VO4)(OH)
Specific gravity: 6.86
Hardness: 4½ to 5
Streak: Pistachio green
Colour: Dark green
Solubility: Easily soluble in cold dilute acids
Environments:

Pegmatites
Hydrothermal environments

Namibite is a secondary mineral in bismuth-bearing hydrothermal polymetallic mineral deposits and granite pegmatites, associated with bismuth, bismutite, wittichenite, bismite, bismutostibiconite, bismutoferrite, clinobisvanite, pucherite, beyerite, schumacherite, mixite, eulytine and chrysocolla (HOM).

At the type locality, a copper mine near Khorixas, northwestern Namibia, namibite occurs in cavities in drusy quartz veins associated with beyerite, native bismuth, bismite, bismutite and oxidised copper minerals (Dana, AM67.857)

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