Petalite Luster
Optical Properties of Petalite 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. Petalite optical properties like luster, clarity, refractive index etc. are used to determine the non-destructive methods during gemstone identification and evaluation.
Petalite luster is the quantity of light the crystal reflects when light is incident on it. Petalite which is commonly found in Colorless, gray, Yellow, White color, is Gemmological Tables (2004) More from other references in nature. It possess Pearly and Vitreous luster.