White, Colorless, Blue, Red, Green, Yellow, Violet
Black, Colorless, Green, Violet, White, Yellow, White, Colorless, Blue, Red, Green, Yellow, pink, Brown, Colorless, Violet, gray, Yellow
Not Available
Taurus, Capricorn, Sagittarius, Capricorn, Sagittarius
Not Available
Conchoidal, Conchoidal, Brittle, Gems
TranslucentWalter Schumann, Gemstones of the world (2001)
Transparent, Translucent, Transparent to translucent