Origin
Russia
USA, Mexico, Tanzania, Brazil, Pakistan, Afghanistan, Origins: USA
Color
Black, Violet, Blue, Green
Green, Reddish, Brown, Yellow, Colorless, Blue, Violet, Grey
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
3.22-3.403.26-3.36
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
1,2 prismatic.
Good on {100}
Mohs Hardness
5-66.5-7
2
10
👆🏻
Chemical Composition
(Ca,Cr)MgSi 2O 6Gemdat.org , Management Team (2012)
(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous
Vitreous
Pleochroism
Common trichroism: light green
Strong
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.668-1.7031.656-1.704
1
3.25
👆🏻
Optic Character
-
Biaxial/+
Crystal System
monoclinic
Triclinic
Birefringence
0.024-0.0300.009-0.012
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
Enhances mental clarity and focus
Cardiovascular
Supports heart health
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Renewal
Harmony
Healing
Physical healing
Emotional healing
Qualities Associated
Love
Balance