Origin
USA, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
Colombia, Zambia, Brazil, Madagascar, Southern and central Africa, Zimbabwe, Russia, India, Pakistan, Australia, USA, Mexico, Spain
Color
Colorless, Yellow, pink, Red
Green, Blue, Yellow, Grey
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
2.90-2.982.67-2.78
1
7.18
👆🏻
Fracture
Conchoidal, ConchoidalWalter Schumann
Uneven, ConchoidalWalter Schumann
Cleavage
Distinct on {11 2 0}, imperfect on {10 1 1}
Imperfect on the [0001]
Mohs Hardness
7.5-87.5-8
2
10
👆🏻
Chemical Composition
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Be3Al2SiO6
Luster
Vitreous
Vitreous
Pleochroism
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
Strong dichroism: yellow green Lazzarelli
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
-
Transparent, Translucent, Transparent to translucent
Refractive Index
1.650-1.6951.565-1.602
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal
Hexagonal
Birefringence
0.0160.0040-0.0070
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
-