Brazil, Madagascar, Russia, USA, Mexico, Pakistan, brown, Yellow, Orange, Brazil, Sri Lanka, Pakistan, Russia, brown, Yellow, Orange, Brazil, Sri Lanka, Pakistan, Russia
Australia, Canada, Guatemala, Italy, Kenya, Mexico, Turkey, Mexico, Guatemala, Mexico, Guatemala
Yellow, Blue, Green, Red, White, Colorless, Blue, Red, Green, Yellow, pink, Brown
Brown, Green
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Conchoidal, ConchoidalWalter Schumann, Conchoidal