Black, Colorless, Green, Violet, White, Yellow, White, Colorless, Blue, Red, Green, Yellow, pink, Brown, Colorless, Violet, gray, Yellow
Colorless, Yellow, Blue, Reddish, Black, Reddish, Brown, Blue, gray, Black, Reddish, Brown, Blue, gray
Taurus, Capricorn, Sagittarius, Capricorn, Sagittarius
Not Available
Conchoidal, Conchoidal, Brittle, Gems
Subconchoidal, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)