Origin
Canada, Madagascar, Southern and central Africa, Sri Lanka, USA
USA, Southern and central Africa
Color
Violet, Blue
Brown, Green, White, gray, Blue, Yellow
Streak
-
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
2.56-2.664.00-4.65
1
7.18
👆🏻
Fracture
Uneven, ConchoidalWalter Schumann
Uneven, Sub-Conchoidal
Cleavage
Distinct
Perfect on [1011]
Mohs Hardness
7-7.55-5.5
2
10
👆🏻
Chemical Composition
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous, Pearly
Pleochroism
Strong trichroism: colorless to yellowish
-
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
Transparent
Translucent
Refractive Index
1.542-1.5781.620-1.850
1
3.25
👆🏻
Optic Character
Biaxial/+
-
Crystal System
-
Trigonal
Birefringence
0.008-0.0120.223-0.227
0
0.296
👆🏻
Clarity
Transparent
Translucent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Inner vision
Emotional Healing
Healing
Emotional healing
Emotional healing
Qualities Associated
Intuition
Harmony