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
Blue, gray, Black, Blue
Uneven, UnevenArthur Thomas, Gemstones (2009)
Conchoidal, Brittle, Conchoidal
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
[ ]Na2(Mg3Al2)Si8O22(OH)2