Green, Grey, Blue, Yellow, Colorless, Violet, Red
Yellow, Greenish, Brownish, Colorless, White, gray, Yellow, Green, Blue, Violet, Blue, Colorless, Green, gray, Yellow, Blue, Colorless, Green, gray, Yellow, orange
Sub-Conchoidal, Splintery
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
{201} Imperfect, {100} Poor, {001} Poor
[001] good, [210] distinct