Southern and central Africa, Sixth Edition (2006)
Mexico, USA, Canada, Madagascar, Spain, Russia, Sri Lanka, India, Burma, Color: green, greenish yellow, blue, violet, Hardness: 5, Refractive index: 1.60 1.67, Density: 3.17 3.35, Chemical composition: Phosphate composition, Crystal structure: hexagonal, Lustre: vitreous, Origins: Mexico, USA, Canada, Madagascar, Spain, Russia, Sri Lanka, India, brown, green, Yellow, violet, brown, green, Yellow, violet
Blue, Green, Blue, Brown
Yellow, Green, Blue, Blue, Green, White, Yellow, Green, Red, Blue, Green, Colorless, Yellow, Blue, Violet, pink, Brown