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