White, Colorless, Blue, Red, Green, Yellow, Violet
Red, Brown, Yellow, Grey, Colorless, Brownish
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Conchoidal, Brittle
(Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)
C20H36