Origin
Sri Lanka
Southern and central Africa
Color
Blue
Green
Streak
-
-
For which Rashi?
Sagittarius, Scorpio
-
Planet
Pluto
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Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
Hephaestus
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Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.65-4.552.66-2.86
1
7.18
👆🏻
Fracture
Conchoidal
ConchoidalWalter Schumann
Cleavage
None, but may exhibit slight parting
Indiscernible
Mohs Hardness
7.5-87.5-8
2
10
👆🏻
Chemical Composition
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Al 2Be 3Si 6O 18Martin H.
Luster
Vitreous
-
Pleochroism
-
Strongly dichroicMartin H. Read
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.735-1.7901.59
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
-
Birefringence
-99990.004-0.010
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
-
Excellent
Reproductive
-
-
Digestive
-
-
Psychology
Empowerment
Creativity
Healing
-
-
Qualities Associated
Transformation
Creativity