Origin
Southern and central Africa
-
Color
Blue
Blue, White, Grey, Yellow, Green, Colorless, Red, gray
Streak
Blue
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
-
Brittle
Solubility
-
Gelatinises in acids
Durability
-
-
Specific Gravity
3.252.4-2.5
1
7.18
👆🏻
Fracture
-
Uneven, Conchoidal
Cleavage
Imperfect in one direction
Distinct on {110}
Mohs Hardness
5-5.55-6
2
10
👆🏻
Chemical Composition
CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Luster
Vitreous
Vitreous, Greasy
Pleochroism
Trichroic
None
Dispersion
0.010.01
0.005
1
👆🏻
Transparency
Transparent
-
Refractive Index
1.607-1.6721.50
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Isometric
Birefringence
0.065-9999
0
0.296
👆🏻
Clarity
Transparent
-
Physical
Neurological
-
Enhances mental clarity and focus
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Communication
Communication
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Communication