Not Available
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
Taurus, Leo, Taurus, Leo, Taurus, Leo
Scorpio
Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Not Available
Translucent, Transparent to nearly opaque
Transparent, Transparent to nearly opaque