Green, White, gray, Green, White, gray
White, Red, Green, Blue, Brown, Yellow, Brown, Black, pink, Blue, Green, Yellow, Brown, Yellow, Brown, orange
Fibrous, Difficult, Fibrous
ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle