Villiaumite Luster
Optical Properties of Villiaumite are its behavioral responses towards light. While few optical properties can be identified with naked eyes, other require special instruments by the gemologists to identify them. Villiaumite optical properties like luster, clarity, refractive index etc. are used to determine the non-destructive methods during gemstone identification and evaluation.
Villiaumite luster is the quantity of light the crystal reflects when light is incident on it. Villiaumite which is commonly found in Colorless, Red, orange, Brown, pink color, is Gemmological Tables (2004) More from other references in nature.