Red, Violet, Blue, Colorless, Yellow, White, Red, Blue, Colorless, Yellow, White, Red
Greenish, Colorless, White, Brown, Colorless, Yellow, White, Green
Violet, Conchoidal, Brittle, Conchoidal, Brittle
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic