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, Brownish, Yellow, Brown
Uneven, UnevenArthur Thomas, Gemstones (2009)
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.