Origin
Brazil, Madagascar, Zimbabwe, Russia, Sri Lanka, India, Burma, Origins: Brazil
Canada
Color
Greenish, Green, Brownish, Red, Blue, Brown, gray
Yellow, Brown, Red, White, Green, Reddish, Black
Streak
White
White
For which Rashi?
-
-
Planet
-
-
Element of Planets
Earth, Water
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
Healing
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.69-3.813.89-4.18
1
7.18
👆🏻
Fracture
Uneven, Conchoidal to uneven, ConchoidalWalter Schumann
Conchoidal, Uneven
Cleavage
Distinct on {110}, imperfect on {010}, poor on {001}
{0001}, {11 2 0} imperfect
Mohs Hardness
8.55.5
2
10
👆🏻
Chemical Composition
BeAl 2 O 4
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous, Resinous
Pleochroism
X = red; Y = yellow-orange; Z = emerald-green
-
Dispersion
0.020.17
0.005
1
👆🏻
Transparency
Transparent, Translucent, Transparent to translucent
Transparent, Translucent
Refractive Index
1.746-1.7631.687-1.723
1
3.25
👆🏻
Optic Character
Biaxial/+
-
Crystal System
Orthorhombic
Trigonal
Birefringence
0.007-0.0130.028-0.030
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
-
-
Cardiovascular
Supports heart health
-
Respiratory
Good
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Transformation
Optimism
Healing
Physical healing
-
Qualities Associated
Transformation
Transformation