Origin
Southern and central Africa
Madagascar, Southern and central Africa
Color
Colorless, Greenish, Green, gray, Yellow
Grey, Brownish, Blue, Colorless, White, gray, Reddish
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
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.21-3.382.54-2.61
1
7.18
👆🏻
Fracture
Irregular/uneven, Uneven
Uneven
Cleavage
Perfect on {001}
{001} Perfect, {010} Good
Mohs Hardness
6-76
2
10
👆🏻
Chemical Composition
Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
-
Pleochroism
StrongArthur Thomas
-
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
Transparent
Transparent
Refractive Index
1.670-1.7341.518-1.536
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
-
Birefringence
0.006-0.0110.005-0.008
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Empathy
Creativity
Healing
Emotional healing
-
Qualities Associated
Empathy
Creativity