Brown, Yellow, White, Brown, Greenish, Yellow, White
Yellow, Greenish, Brownish, Colorless, White, gray, Yellow, Green, Blue, Violet, Blue, Colorless, Green, gray, Yellow, Blue, Colorless, Green, gray, Yellow, orange
Uneven, Even, Yellow, White
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
K(Mg,Fe++)3[AlSi3O10(OH,F)2
PbSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references