Origin
Russia
USA, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
Color
Black, Violet, Blue, Green
Colorless, Yellow, pink, Red
Streak
-
White
For which Rashi?
Gemini, Virgo
-
Planet
Mercury
-
Element of Planets
Earth
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.22-3.402.90-2.98
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal, ConchoidalWalter Schumann
Cleavage
1,2 prismatic.
Distinct on {11 2 0}, imperfect on {10 1 1}
Mohs Hardness
5-67.5-8
2
10
👆🏻
Chemical Composition
(Ca,Cr)MgSi 2O 6Gemdat.org , Management Team (2012)
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous
Pleochroism
Common trichroism: light green
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.668-1.7031.650-1.695
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Trigonal
Birefringence
0.024-0.0300.016
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
-
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Good
Excellent
Reproductive
-
-
Digestive
-
-
Psychology
Renewal
Clarity
Healing
Physical healing
Emotional healing
Qualities Associated
Love
Spiritual Activation