Clinobisvanite

Formula: Bi(VO4)
Anhydrous normal vanadate, bismuth mineral, polymorph of dreyerite and pucherite
Specific gravity: 6.949 (calculated)
Hardness: Very soft
Streak: Yellow
Colour: Yellow, orange, pale orange, deep reddish orange
Environments

Pegmatites

Clinobisvanite occurs as an accessory mineral in pegmatites, as an oxidation product of other bismuth minerals (HOM).

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).

Back to Minerals