Origin
Russia, green, violet, Yellow, blue, green, violet, Yellow, blue
Southern and central Africa
Color
Black, Violet, Blue, Green
Yellow, Green
Streak
Not Available
White
For which Rashi?
Gemini, Virgo, Gemini, Virgo, Gemini, Virgo
Not Available
Planet
Mercury
Not Available
Element of Planets
Earth
Not Available
Energy
Receptive
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Gia
Not Available
Not to wear with
Not Available
Not Available
Powers
Not Available
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.22-3.40
2.56-2.75
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Conchoidal, Uneven, Conchoidal, Gemstones of the world (2001)
Cleavage
1,2 prismatic.
two or three
Chemical Composition
(Ca,Cr)MgSi 2O 6Gemdat.org , Management Team (2012)
Not Available
Pleochroism
Common trichroism: light green
None
Dispersion
Not Available
Not Available
Transparency
Gems, Sixth Edition (2006)
Transparent, Translucent
Refractive Index
1.668-1.703
1.518-1.570
Optic Character
Not Available
Not Available
Crystal System
monoclinic
Triclinic or monoclinic
Birefringence
0.024-0.030
0.008-0.010
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
Respiratory
Not Available
Not Available
Reproductive
Not Available
Not Available
Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available