Origin
Southern and central Africa
USA, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
Color
White, Colorless, Blue, Red, Green, Yellow, Violet, Black
Colorless, Yellow, pink, Red
Streak
Colorless
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
-
-
Durability
-
-
Specific Gravity
3.03-3.182.90-2.98
1
7.18
👆🏻
Fracture
Uneven, Irregular, Conchoidal
Conchoidal, ConchoidalWalter Schumann
Cleavage
{???} Indistinct
Distinct on {11 2 0}, imperfect on {10 1 1}
Mohs Hardness
7-7.57.5-8
2
10
👆🏻
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous
Pleochroism
Very strong: pale yellow colorless
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent
-
Refractive Index
1.614-1.6661.650-1.695
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Trigonal
Birefringence
0.014-0.0320.016
0
0.296
👆🏻
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
-
Cardiovascular
-
Supports heart health
Respiratory
-
Excellent
Reproductive
-
-
Digestive
-
-
Psychology
Self-acceptance
Clarity
Healing
Emotional healing
Emotional healing
Qualities Associated
Self-Exploration
Spiritual Activation