Origin
Sri Lanka
Pakistan, Tanzania
Color
Blue
Brown, gray, Green, Blue, rose, Red
Streak
-
White, Colorless
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
3.65-4.553.20-3.50
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Conchoidal, Even
Cleavage
None, but may exhibit slight parting
Perfect {010} imperfect {100}
Mohs Hardness
7.5-86-7
2
10
👆🏻
Chemical Composition
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Ca2Al3(SiO4)3(OH)
Luster
Vitreous
Vitreous
Pleochroism
-
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
-
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
Refractive Index
1.735-1.7901.685-1.707
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
Orthorhombic
Birefringence
-99990.006-0.018
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Physical
Neurological
-
-
Cardiovascular
-
Supports heart health
Respiratory
-
Excellent
Reproductive
-
Supports reproductive health
Digestive
-
-
Psychology
Empowerment
Transformation
Healing
-
Emotional healing
Qualities Associated
Transformation
-