Origin
-
Southern and central Africa, Burma, Tanzania, India, Sri Lanka
Color
Blue, White, Grey, Yellow, Green, Colorless, Red, gray
Yellow, White, Green, Brown, Greenish, gray
Streak
Blue, White
Grey, 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
Brittle
Brittle
Solubility
Gelatinises in acids
-
Durability
-
-
Specific Gravity
2.4-2.53.20-3.25
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Uneven, Conchoidal
Cleavage
Distinct on {110}
Good/distinct on [210]
Mohs Hardness
5-65.5
2
10
👆🏻
Chemical Composition
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Mg 2Si 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Greasy
Vitreous, Pearly
Pleochroism
None
Pale green to pale orange
Dispersion
0.010.01
0.005
1
👆🏻
Transparency
-
Transparent, Translucent
Refractive Index
1.501.650-1.680
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
Orthorhombic
Birefringence
-99990.009-0.011
0
0.296
👆🏻
Clarity
-
Transparent
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Communication
Grounding
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Grounding