White, Colorless, Blue, Red, Green, Yellow, Violet
Yellow, Brown, Black, Colorless, White, Brownish
Not Available
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references