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
Colorless, White, Yellow, White, Greenish, gray, Brown, Colorless, Yellow
Uneven, UnevenArthur Thomas, Gemstones (2009)
Conchoidal, Brittle, Conchoidal
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references