Colorless, White, Blue, Yellow, Grey, Brown, Colorless, White, Blue, Yellow, Grey, Brown
Colorless, White, Blue, gray
Irregular/uneven
White, Yellow, Pale blue, Brittle, Uneven
Perfect cleavage parallel to base and prism faces: {001} Perfect, {210} Perfect, {010} Imperfect
Perfect on {100} and {010}, imperfect on {101}