Origin
Sri Lanka
Austria, Brazil, Canada, India, Madagascar, Russia, Sri Lanka, USA
Color
Blue
Red, Brown, Brownish, Black
Streak
-
White
For which Rashi?
Sagittarius, Scorpio
-
Planet
Pluto
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
Hephaestus
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.65-4.553.95-4.30
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
None, but may exhibit slight parting
none
Mohs Hardness
7.5-87-7.5
2
10
👆🏻
Chemical Composition
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Luster
Vitreous
Greasy, Vitreous
Pleochroism
-
None
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.735-1.7901.770-1.820
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
cubic
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
-
Good
Reproductive
-
Supports reproductive health
Digestive
-
-
Psychology
Empowerment
Strength
Healing
-
Emotional healing
Qualities Associated
Transformation
Devotion