Origin
Southern and central Africa
Australia
Color
Yellow, Blue, Black, Green, gray
Blue, Green, Greenish, Black
Streak
White
Grey, gray
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
3.43-3.444.00-4.62
1
7.18
👆🏻
Fracture
-
Conchoidal, Uneven
Cleavage
None Observed
Indistinct parting on [111]
Mohs Hardness
6.5-77.5-8
2
10
👆🏻
Chemical Composition
Ca 2(Mg,Al) 6(Si,Al,B) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Vitreous
Pleochroism
visible
-
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.696-1.7021.790-1.818
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Triclinic
cubic
Birefringence
0.005-9999
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
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Enhances mental clarity and focus
Cardiovascular
-
-
Respiratory
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Aids in digestion and soothes the stomach
Reproductive
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-
Digestive
-
-
Psychology
-
Protection
Healing
Emotional healing
Emotional healing
Qualities Associated
Transformation
Harmony