Australia, Italy
Canada, Columbia, Brazil, Burma, Russia, blue
Yellow, Red, Reddish, Brown, Colorless, White, Yellow, Red, Reddish, Brown, Colorless, White, gray, White, gray, Reddish, White, gray, Reddish, White, gray, Reddish
Blue, White, pink, gray, Green
Conchoidal, Uneven
Conchoidal, Uneven, UnevenArthur Thomas, Brittle