Green, Greenish, Blue, Red
Colorless, White, Yellow, Green, White, pink, Green, Yellow, Violet, White, pink, Green, Yellow, Violet
Not Available
Uneven, Brittle, Uneven, Brittle, Uneven
SiO 2Arthur Thomas , Gemstones (2009)
(K,Na)Ca4Si8O20(F,OH)•8(H2O)