Mansfieldite

arsenate

hydrothermal

Formula: Al(AsO4).2H2O
Forms a series with scorodite.
Specific gravity: 3.03
Hardness: 3½ to 4
Streak: White
Colour: White, light gray; colourless in transmitted light.
Environments:

Hydrothermal environments

At the type locality, Hobart Butte, Oregon, USA, mansfieldite is associated with scorodite, realgar and kaolinite.

Back to Minerals