Origin
Sri Lanka
Southern and central Africa
Color
Blue
Blue, Grey
Streak
-
-
For which Rashi?
Sagittarius, Scorpio
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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
3.65-4.552.58-2.64
1
7.18
👆🏻
Fracture
Conchoidal
-
Cleavage
None, but may exhibit slight parting
-
Mohs Hardness
7.5-87
2
10
👆🏻
Chemical Composition
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
SiO 2Walter Schumann , Gemstones of the world (2001)
Luster
Vitreous
-
Pleochroism
-
-
Dispersion
0.020.05
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.735-1.7901.534-1.540
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
-
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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Physical
Neurological
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-
Cardiovascular
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Aids in digestion and soothes the stomach
Respiratory
-
-
Reproductive
-
-
Digestive
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Psychology
Empowerment
Protection
Healing
-
Emotional healing
Qualities Associated
Transformation
Protection