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