Green, Greenish, Blue, Red
Green, Black, White, Grey, Green, Black, White, Grey, Green, Black, gray, Black, Green, Black, gray, Black
Not Available
Uneven, UnevenArthur Thomas, Gemstones (2009), Splintery
SiO 2Arthur Thomas , Gemstones (2009)
Ca 2(Mg,Fe) 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.