Optical Properties of Jasper 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. Jasper optical properties like luster, clarity, refractive index etc. are used to determine the non-destructive methods during gemstone identification and evaluation.
Jasper luster is the quantity of light the crystal reflects when light is incident on it. Jasper which is commonly found in All colors, White, Colorless, Blue, Red, Green, Yellow, pink color, is Opaque in nature. It possess Vitreous luster.