Anhydrous normal vanadate, bismuth mineral, polymorph of dreyerite and pucherite
Specific gravity: 6.949 (calculated)
Hardness: Very soft
Colour: Yellow, orange, pale orange, deep reddish orange
Clinobisvanite occurs as an accessory mineral in pegmatites, as an oxidation product of other bismuth minerals
At the type locality, the Kempton Brothers Beryl Mine pegmatites, Yinnietharra, Upper Gascoyne Shire, Western Australia, clinobisvanite occurs often intergrown with bismutite and pucherite, and on garnet in beryl-bearing spessartine pegmatites (Dana). Other associated minerals include bismite, bismuth, vanadinite, beyerite, namibite and scheelite (HOM, Mindat).
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