Colorless, Green, Black, Brown, Red, Greenish, Yellow, gray
Yellow, Brownish, Reddish, Green, Brownish, Yellow, Green, Yellow, Red
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
Uneven
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
(Fe+++,Al)25(PO4)17O6(OH)12•75(H2O)