Origin
Southern and central Africa
Russia
Color
Black, Brownish, Brown
Black, Violet, Blue, Green
Streak
Brown
-
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
4.5-4.83.22-3.40
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
None, parting may develop along {111}
1,2 prismatic.
Mohs Hardness
5.55-6
2
10
👆🏻
Chemical Composition
Fe++Cr2O4
(Ca,Cr)MgSi 2O 6Gemdat.org , Management Team (2012)
Luster
-
Vitreous
Pleochroism
none.
Common trichroism: light green
Dispersion
0.040.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
2.08-2.161.668-1.703
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
monoclinic
Birefringence
-99990.024-0.030
0
0.296
👆🏻
Clarity
-
-
Physical
Neurological
-
-
Cardiovascular
-
Supports heart health
Respiratory
Poor
Good
Reproductive
-
-
Digestive
-
-
Psychology
Vitality
Renewal
Healing
Emotional healing
Physical healing
Qualities Associated
Protection
Love