Origin
Russia
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Color
Black, Violet, Blue, Green
Blue, Green
Streak
-
Blue
For which Rashi?
Gemini, Virgo
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Planet
Mercury
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Element of Planets
Earth
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Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.22-3.403.80-4.15
1
7.18
👆🏻
Fracture
Conchoidal
Uneven
Cleavage
1,2 prismatic.
perfect along [010] and [100]
Mohs Hardness
5-63.5-4
2
10
👆🏻
Chemical Composition
(Ca,Cr)MgSi 2O 6Gemdat.org , Management Team (2012)
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Silky
Pleochroism
Common trichroism: light green
X = very pale blue; Y = pale blue; Z = deep blue
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
-
Translucent
Refractive Index
1.668-1.7031.752-1.815
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Orthorhombic
Birefringence
0.024-0.0300.063
0
0.296
👆🏻
Clarity
-
Translucent
Physical
Neurological
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Cardiovascular
Supports heart health
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Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Renewal
Communication
Healing
Physical healing
Emotional healing
Qualities Associated
Love
Communication