Origin
-
USA, Southern and central Africa
Color
Blue, gray, Black
Brown, Green, White, gray, Blue, 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
3-3.154.00-4.65
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Sub-Conchoidal
Cleavage
Good on [110] and on [001]
Perfect on [1011]
Mohs Hardness
6.0-6.55-5.5
2
10
👆🏻
Chemical Composition
[ ]Na2(Mg3Al2)Si8O22(OH)2
ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Pearly
Vitreous, Pearly
Pleochroism
Strong
-
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
-
Translucent
Refractive Index
1.606-1.6371.620-1.850
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Trigonal
Birefringence
-99990.223-0.227
0
0.296
👆🏻
Clarity
-
Translucent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Communication
Emotional Healing
Healing
Emotional healing
Emotional healing
Qualities Associated
Peace
Harmony