White, Colorless, Blue, Red, Green, Yellow, Violet
Colorless, White, Yellow, Grey, Colorless, gray, White, Yellow
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Conchoidal, Brittle
(Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)
Na2Ca(CO3)2•5(H2O)