Blue, Red, Yellow, Colorless, Blue, Colorless, Green, Yellow, White, Blue, Colorless, Green, Yellow, White
Reddish, Brown, Yellow, Green, Red, Greenish, gray
Uneven, Conchoidal, Brittle, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Conchoidal, Uneven, Brittle
Poor/indistinct on {1120} and {1011}
Imperfect on {001}, indistinct on {011}