White, Colorless, Blue, Red, Green, Yellow, Violet
Green, Colorless, gray, White, Green, Colorless, gray, White
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Brittle, Conchoidal