Origin
Southern and central Africa
Italy, Canada
Color
Yellow, Blue, Colorless, White
Blue, Red, Yellow, Colorless, Green, White
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
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.28-3.312.90-3.10
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Conchoidal
Cleavage
None observed
Poor/indistinct on {1120} and {1011}
Mohs Hardness
6.5-7.57
2
10
👆🏻
Chemical Composition
Al 6B 5O 15(F,OH) 3Ulrich 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
Luster
Vitreous
Vitreous
Pleochroism
Colorless
Pale green
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
-
Transparent
Refractive Index
1.638-1.6501.614-1.666
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Hexagonal
Trigonal
Birefringence
0.01300.014-0.032
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Excellent
-
Reproductive
-
-
Digestive
-
-
Psychology
Clarity
Emotional healing
Healing
Emotional healing
Emotional healing
Qualities Associated
Clarity
Emotional Healing