Origin
Southern and central Africa
Southern and central Africa
Color
Yellow, Blue, Colorless, White
Black, Brownish, Brown
Streak
White
Brown
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
3.28-3.314.5-4.8
1
7.18
👆🏻
Fracture
Conchoidal
Uneven
Cleavage
None observed
None, parting may develop along {111}
Mohs Hardness
6.5-7.55.5
2
10
👆🏻
Chemical Composition
Al 6B 5O 15(F,OH) 3Ulrich Henn and Claudio C.
Fe++Cr2O4
Luster
Vitreous
-
Pleochroism
Colorless
none.
Dispersion
0.010.04
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.638-1.6502.08-2.16
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Hexagonal
Isometric
Birefringence
0.0130-9999
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
-
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Excellent
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Clarity
Vitality
Healing
Emotional healing
Emotional healing
Qualities Associated
Clarity
Protection