Red, Brown, Violet, Red, Brown
Colorless, Reddish, White, pink, Green, Yellow, Violet, White, pink, Green, Yellow, Violet, White, Colorless, Blue, Green, Brown, Yellow, pink, Violet, White, pink, Green, Yellow, Violet
Uneven, Subconchoidal, Conchoidal, Brittle
Uneven, UnevenArthur Thomas, Gemstones (2009)