Optical Properties of Andradite 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. Andradite optical properties like luster, clarity, refractive index etc. are used to determine the non-destructive methods during gemstone identification and evaluation.
Andradite luster is the quantity of light the crystal reflects when light is incident on it. Andradite which is commonly found in Colorless, Green, Black, Brown, Red, Greenish, Yellow, gray color, is Transparent in nature. It possess Adamantine and Resinous luster.