Origin
-
Southern and central Africa
Color
Blue, gray, Black
White, Colorless, gray, Yellow
Streak
Blue
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
3-3.152.45-2.50
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
Good on [110] and on [001]
Poor on {110}
Mohs Hardness
6.0-6.55.5-6
2
10
👆🏻
Chemical Composition
[ ]Na2(Mg3Al2)Si8O22(OH)2
KAlSi 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Pearly
Vitreous
Pleochroism
Strong
-
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.606-1.6371.504-1.510
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
tetragonal
Birefringence
-99990.001
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
3.4g
Digestive
-
-
Psychology
Communication
Creativity
Healing
Emotional healing
Emotional healing
Qualities Associated
Peace
Balance