Origin
Southern and central Africa
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Color
Blue
Blue, Green, Brownish, Greenish, Colorless, gray
Streak
Blue
White
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
Tough
Solubility
-
-
Durability
-
-
Specific Gravity
3.253.20-3.26
1
7.18
👆🏻
Fracture
-
Splintery
Cleavage
Imperfect in one direction
{010} perfect
Mohs Hardness
5-5.56-7.5
2
10
👆🏻
Chemical Composition
CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Vitreous, Subadamantine, Silky
Pleochroism
Trichroic
Colourless to pale brown to yellow
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
Transparent
Transparent, Translucent
Refractive Index
1.607-1.6721.653-1.685
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Orthorhombic
Birefringence
0.0650.020-0.022
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Communication
Creativity
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Creativity