Origin
Southern and central Africa
Southern and central Africa, Burma, Tanzania, India, Sri Lanka
Color
White, Colorless, Blue, Red, Green, Yellow, Violet, Black
Yellow, White, Green, Brown, Greenish, gray
Streak
Colorless
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
3.03-3.183.20-3.25
1
7.18
👆🏻
Fracture
Uneven, Irregular, Conchoidal
Uneven, Conchoidal
Cleavage
{???} Indistinct
Good/distinct on [210]
Mohs Hardness
7-7.55.5
2
10
👆🏻
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Mg 2Si 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous, Pearly
Pleochroism
Very strong: pale yellow colorless
Pale green to pale orange
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
Transparent
Transparent, Translucent
Refractive Index
1.614-1.6661.650-1.680
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Orthorhombic
Birefringence
0.014-0.0320.009-0.011
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
-
-
Reproductive
-
-
Digestive
-
-
Psychology
Self-acceptance
Grounding
Healing
Emotional healing
Emotional healing
Qualities Associated
Self-Exploration
Grounding