Astrology
Origin
Canada, Madagascar, Southern and central Africa, Sri Lanka, USA
Italy, Canada
Color
Violet, Blue
Blue, Red, Yellow, Colorless, Green, White
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
-
-
Physical Properties
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.56-2.662.90-3.10
1
7.18
👆🏻
Fracture
Uneven, ConchoidalWalter Schumann
Uneven, Conchoidal
Cleavage
Distinct
Poor/indistinct on {1120} and {1011}
Mohs Hardness
7-7.57
2
10
👆🏻
Chemical Composition
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
Optical Properties
Luster
Vitreous
Vitreous
Pleochroism
Strong trichroism: colorless to yellowish
Pale green
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent
Transparent
Refractive Index
1.542-1.5781.614-1.666
1
3.25
👆🏻
Optic Character
Biaxial/+
-
Crystal System
-
Trigonal
Birefringence
0.008-0.0120.014-0.032
0
0.296
👆🏻
Clarity
Transparent
Transparent
Benefits
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Inner vision
Emotional healing
Healing
Emotional healing
Emotional healing
Qualities Associated
Intuition
Emotional Healing