Origin
Southern and central Africa
Southern and central Africa, Burma, Tanzania, India, Sri Lanka
Color
Yellow, Blue, Colorless, White
Yellow, White, Green, Brown, Greenish, gray
Streak
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
Solubility
-
-
Durability
-
-
Specific Gravity
3.28-3.313.20-3.25
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Conchoidal
Cleavage
None observed
Good/distinct on [210]
Mohs Hardness
6.5-7.55.5
2
10
👆🏻
Chemical Composition
Al 6B 5O 15(F,OH) 3Ulrich Henn and Claudio C.
Mg 2Si 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous, Pearly
Pleochroism
Colorless
Pale green to pale orange
Dispersion
0.010.01
0.005
1
👆🏻
Transparency
-
Transparent, Translucent
Refractive Index
1.638-1.6501.650-1.680
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Hexagonal
Orthorhombic
Birefringence
0.01300.009-0.011
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Excellent
-
Reproductive
-
-
Digestive
-
-
Psychology
Clarity
Grounding
Healing
Emotional healing
Emotional healing
Qualities Associated
Clarity
Grounding