Origin
-
Southern and central Africa
Color
Blue, gray, Black
Colorless, White, Yellow, Blue, Green, gray
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
-
Soluble
Durability
-
-
Specific Gravity
3-3.152.95-2.96
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
Good on [110] and on [001]
None
Mohs Hardness
6.0-6.57-7.5
2
10
👆🏻
Chemical Composition
[ ]Na2(Mg3Al2)Si8O22(OH)2
Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Pearly
Vitreous, Adamantine
Pleochroism
Strong
None
Dispersion
0.02-
0.005
1
👆🏻
Transparency
-
Transparent
Refractive Index
1.606-1.6371.658-1.673
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Orthorhombic
Birefringence
-99990.010-0.011
0
0.296
👆🏻
Clarity
-
Transparent
Physical
Neurological
-
-
Cardiovascular
-
Supports heart health
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Communication
-
Healing
Emotional healing
Emotional healing
Qualities Associated
Peace
Peace