Russia, Brazil, Tanzania, Madagascar, Zambia, Sri Lanka, Burma, India, Color: color change, from bluish green (daylight) to purple, red or brown (incandescent light), Hardness: 8, Refractive index: 1.74 1.77, Density: 3.68 3.80, Chemical composition: BeAl2O4, Crystal structure: orthorhombic, Origins: Russia, Brazil, Tanzania, Madagascar, Zambia, Sri Lanka, Burma
Australia, Canada, Italy, Kazakhstan, Russia, Switzerland, Turkey, USA, Guatemala
Scorpio
Pisces, Libra, Gemini, Taurus, Aries, Pisces, Libra, Gemini, Taurus, Aries, Pisces, Libra, Gemini, Taurus, Aries
Transparent, Transparent to nearly opaque
Translucent, Translucent to opaque