Origin
Sri Lanka, Southern and central Africa
Southern and central Africa
Color
Blue
Greenish, Blue, Colorless, Green, Yellow
Streak
-
Greenish, gray
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.95-4.103.17-3.24
1
7.18
👆🏻
Fracture
-
Conchoidal
Cleavage
None
(0001) indistinct
Mohs Hardness
99-9.5
2
10
👆🏻
Chemical Composition
Al 2O 3Ulrich Henn and Claudio C.
SiCArthur Thomas , Gemstones (2009)
Luster
-
Adamantine
Pleochroism
-
-
Dispersion
0.020.10
0.005
1
👆🏻
Transparency
Transparent, Translucent
-
Refractive Index
1.757-1.7802.648-2.691
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
6H polytype
Birefringence
0.007-0.0100.043
0
0.296
👆🏻
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
-
-
Reproductive
-
-
Digestive
-
-
Psychology
Intuition
Clarity
Healing
Emotional healing
-
Qualities Associated
Creativity
Creativity