Origin
Brazil, Madagascar, Zimbabwe, Russia, Sri Lanka, India, Burma, Origins: Brazil
Canada, Brazil, Madagascar, Mozambique, Russia, India, Pakistan, China, Sri Lanka, Origins: Canada, Namibia
Color
Greenish, Green, Brownish, Red, Blue, Brown, gray
Green, Blue, Yellow, Colorless, pink
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
Healing
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.69-3.812.60-2.90
1
7.18
👆🏻
Fracture
Uneven, Conchoidal to uneven, ConchoidalWalter Schumann
Uneven, Conchoidal, Irregular
Cleavage
Distinct on {110}, imperfect on {010}, poor on {001}
Imperfect on {0001}
Mohs Hardness
8.57.5-8
2
10
👆🏻
Chemical Composition
BeAl 2 O 4
Be3Al2Si6O18
Luster
Vitreous
Vitreous, Resinous
Pleochroism
X = red; Y = yellow-orange; Z = emerald-green
Weak to distinct
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
Transparent, Translucent, Transparent to translucent
Transparent, Transparent to opaque
Refractive Index
1.746-1.7631.560-1.604
1
3.25
👆🏻
Optic Character
Biaxial/+
-
Crystal System
Orthorhombic
Hexagonal
Birefringence
0.007-0.0130.0040-0.0070
0
0.296
👆🏻
Clarity
Transparent
Transparent