Southern and central Africa, Sri Lanka, blue, India, brown, green, Orange, Sri Lanka, blue, India, brown, green, Orange
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
Cancer, Libra, Scorpio, Cancer, Libra, Scorpio, Cancer, Libra, Scorpio
Scorpio
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Not Available
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
1,1 ; 3,2.
Transparent, Transparent to translucent
Transparent, Transparent to nearly opaque