Colorless, White, Yellow, Green, White, pink, Green, Yellow, Violet, White, pink, Green, Yellow, Violet
Yellow, Greenish, Brownish, Colorless, White, gray, Yellow, Green, Blue, Violet, Blue, Colorless, Green, gray, Yellow, Blue, Colorless, Green, gray, Yellow, orange
Uneven, Brittle, Uneven, Brittle, Uneven
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Perfect on {001}, imperfect on {110}
[001] good, [210] distinct
(K,Na)Ca4Si8O20(F,OH)•8(H2O)
PbSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references