Minerals identify

Know how to recognize them

Villiaumite

Halide mineral

Villiaumite is a rare halide mineral composed of sodium fluoride. It is very soluble in water and some specimens fluoresce under long and short wave ultraviolet of 2.5 and is usually red, pink, or orange in color. It is toxic to humans.

The red color is due to a broad absorption peaking at 512 nm. It is a result of radiation damage to the crystal.

Identification

Color of mineral

Red
Purple
Pink
Orange

Mohs scale ( mineral hardness )

2

Density ( specific gravity )

1.327

Luster ( interacts light )

Vitreous

Crystal ( diaphaneity )

Cubic