Origin
Colombia, Zambia, Brazil, Madagascar, Southern and central Africa, Zimbabwe, Russia, India, Pakistan, Australia, USA, Mexico, Spain
USA, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
Color
Green, Blue, Yellow, Grey
Colorless, Yellow, pink, Red
Streak
White
White
For which Rashi?
Taurus, Gemini, Aries
-
Planet
Venus, Mercury
-
Element of Planets
Earth
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
Gold
-
Deities
Diana, Artemis, Venus, Freyja
-
Not to wear with
Red Coral, Natural Pearl, Moonstone, Ruby
-
Powers
Protection, Love, Courage
-
Birthstone
Planetary
Taurus
-
Talisman
Gemini
-
Tenacity
-
Brittle
Solubility
-
-
Durability
Hard
-
Specific Gravity
2.67-2.782.90-2.98
1
7.18
👆🏻
Fracture
Uneven, ConchoidalWalter Schumann
Conchoidal, ConchoidalWalter Schumann
Cleavage
Imperfect on the [0001]
Distinct on {11 2 0}, imperfect on {10 1 1}
Mohs Hardness
7.5-87.5-8
2
10
👆🏻
Chemical Composition
Be3Al2SiO6
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous
Pleochroism
Strong dichroism: yellow green Lazzarelli
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
Transparent, Translucent, Transparent to translucent
-
Refractive Index
1.565-1.6021.650-1.695
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Hexagonal
Trigonal
Birefringence
0.0040-0.00700.016
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda