Minerals identify

Know how to recognize them

Russellite

Tungstate mineral

Russellite is a bismuth with the chemical formula Bi2WO6. It crystallizes in the orthorhombic crystal system. Russellite is yellow or yellow-green in color, with a Mohs hardness

Russellite is named for the mineralogist Sir Arthur Russell, and the type locality is the Castle-an-Dinas Mine near St Columb Major , where it was found in 1938 in wolframite It occurs as a secondary alteration of other bismuth bearing minerals in tin - tungsten hydrothermal and greisens. It typically occurs associated with native bismuth, bismuthinite , ferberite , ferritungstite, koechlinite , muscovite

Identification

Color of mineral

Yellow
Green

Mohs scale ( mineral hardness )

3.5

Density ( specific gravity )

2.17

Crystal ( diaphaneity )

Orthorhombic