Origin
Italy, Canada
Switzerland, Australia, Brazil
Color
Blue, Red, Yellow, Colorless, Green, White
Yellow, Colorless, White, Brownish, Reddish
Streak
White
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
2.90-3.105.9-6.3
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Conchoidal, Uneven
Cleavage
Poor/indistinct on {1120} and {1011}
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Mohs Hardness
74.5-5
2
10
👆🏻
Chemical Composition
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
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous, Adamantine
Pleochroism
Pale green
Definite dichoric in yellow (yellow to orange-brown)
Dispersion
0.020.04
0.005
1
👆🏻
Transparency
Transparent
Translucent, Transparent
Refractive Index
1.614-1.6661.918-1.936
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal
tetragonal
Birefringence
0.014-0.0320.016
0
0.296
👆🏻
Clarity
Transparent
Translucent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
-
-
Reproductive
-
-
Digestive
-
-
Psychology
Emotional healing
Awareness
Healing
Emotional healing
Physical healing
Qualities Associated
Emotional Healing
Balance & Clarity