Origin
Russia
-
Color
Black, Violet, Blue, Green
Blue, Green
Streak
-
Blue
For which Rashi?
Gemini, Virgo
Sagittarius, Capricorn
Planet
Mercury
Venus
Element of Planets
Earth
Water
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
Psychic Power
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.22-3.403.70-3.90
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
1,2 prismatic.
Perfect on {011}, fair on {100}, poor on {110}
Mohs Hardness
5-63.5-4
2
10
👆🏻
Chemical Composition
(Ca,Cr)MgSi 2O 6Gemdat.org , Management Team (2012)
Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous
Pleochroism
Common trichroism: light green
Visible shades of blue
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
-
Transparent, Translucent
Refractive Index
1.668-1.7031.720-1.850
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
monoclinic
Birefringence
0.024-0.0300.108
0
0.296
👆🏻
Clarity
-
Transparent
Physical
Neurological
-
Enhances mental clarity and focus
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Good
Excellent
Reproductive
-
Supports reproductive health
Digestive
-
-
Psychology
Renewal
Insight
Healing
Physical healing
Emotional healing
Qualities Associated
Love
Insight