Origin
Russia
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe
Color
Black, Violet, Blue, Green
Brown
Streak
-
Brownish, Red, Black
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
3.22-3.405.2
1
7.18
👆🏻
Fracture
Conchoidal
Subconchoidal, Conchoidal
Cleavage
1,2 prismatic.
Good in one direction
Mohs Hardness
5-66-6.5
2
10
👆🏻
Chemical Composition
(Ca,Cr)MgSi 2O 6Gemdat.org , Management Team (2012)
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous
Resinous
Pleochroism
Common trichroism: light green
-
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
-
TransparentWalter Schumann
Refractive Index
1.668-1.7032.190-2.457
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Orthorhombic
Birefringence
0.024-0.0300.083
0
0.296
👆🏻
Clarity
-
TransparentWalter Schumann
Physical
Neurological
-
-
Cardiovascular
Supports heart health
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Renewal
Strength
Healing
Physical healing
Emotional healing
Qualities Associated
Love
Balance