Origin
-
USA, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
Color
Blue, gray, Black
Colorless, Yellow, pink, Red
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
3-3.152.90-2.98
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal, ConchoidalWalter Schumann
Cleavage
Good on [110] and on [001]
Distinct on {11 2 0}, imperfect on {10 1 1}
Mohs Hardness
6.0-6.57.5-8
2
10
👆🏻
Chemical Composition
[ ]Na2(Mg3Al2)Si8O22(OH)2
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Pearly
Vitreous
Pleochroism
Strong
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.606-1.6371.650-1.695
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Trigonal
Birefringence
-99990.016
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
-
Cardiovascular
-
Supports heart health
Respiratory
Good
Excellent
Reproductive
-
-
Digestive
-
-
Psychology
Communication
Clarity
Healing
Emotional healing
Emotional healing
Qualities Associated
Peace
Spiritual Activation