Hematite Luster
Optical Properties of Hematite 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. Hematite optical properties like luster, clarity, refractive index etc. are used to determine the non-destructive methods during gemstone identification and evaluation.
Hematite luster is the quantity of light the crystal reflects when light is incident on it. Hematite which is commonly found in Black, Reddish, gray, Red color, is Blue Chart Gem Identification (2010) More from other references and OpaqueHerve Nicolas Lazzarelli in nature.