Origin
Russia
Tanzania, Sri Lanka, China
Color
Black, Violet, Blue, Green
Colorless
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
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.22-3.403.60-3.61
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
1,2 prismatic.
Imperfect/fair/absent
Mohs Hardness
5-68-8.5
2
10
👆🏻
Chemical Composition
(Ca,Cr)MgSi 2O 6Gemdat.org , Management Team (2012)
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous
Vitreous
Pleochroism
Common trichroism: light green
Weak
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.668-1.7031.70-1.73
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Hexagonal
Birefringence
0.024-0.0300.055
0
0.296
👆🏻
Clarity
-
-
Physical
Neurological
-
-
Cardiovascular
Supports heart health
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Renewal
Transformation
Healing
Physical healing
Physical healing
Qualities Associated
Love
Spiritual Growth