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