Origin
Southern and central Africa
USA, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
Color
Colorless, Greenish, Green, gray, Yellow
Colorless, Yellow, pink, Red
Streak
White
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
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.21-3.382.90-2.98
1
7.18
👆🏻
Fracture
Irregular/uneven, Uneven
Conchoidal, ConchoidalWalter Schumann
Cleavage
Perfect on {001}
Distinct on {11 2 0}, imperfect on {10 1 1}
Mohs Hardness
6-77.5-8
2
10
👆🏻
Chemical Composition
Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous
Pleochroism
StrongArthur Thomas
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent
-
Refractive Index
1.670-1.7341.650-1.695
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Trigonal
Birefringence
0.006-0.0110.016
0
0.296
👆🏻
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
-
Cardiovascular
-
Supports heart health
Respiratory
Good
Excellent
Reproductive
-
-
Digestive
-
-
Psychology
Empathy
Clarity
Healing
Emotional healing
Emotional healing
Qualities Associated
Empathy
Spiritual Activation