Gibbsite Luster
Optical Properties of Gibbsite 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. Gibbsite optical properties like luster, clarity, refractive index etc. are used to determine the non-destructive methods during gemstone identification and evaluation.
Gibbsite luster is the quantity of light the crystal reflects when light is incident on it. Gibbsite which is commonly found in Green, White, gray, Green, White, gray color, It possess Pearly and Vitreous luster.