Blue, Yellow, Brown, gray, Reddish, Greenish
Greenish, White, White, gray, Greenish, Reddish, White, gray, Greenish, Green, gray, White, gray, Greenish, Green, gray
(e.g. graphite).
Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal
{???} Imperfect, {???} Imperfect
Perfect on {001}, very good on {010}, imperfect on {110}