Black, Colorless, Green, Violet, White, Yellow
Yellow, Brownish, Reddish, White, Colorless, Blue, Green, Yellow, Green, Yellow, Brownish, Reddish, White, Colorless, Blue, Green, Yellow, Green, Violet, pink, Yellow, Green, Violet, pink
Not Available
White, Green, White, Green
Gems, Sixth Edition (2006)
Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic
Quartz: SiO2 Rutile: TiO2
Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)