Origin
Australia
Southern and central Africa
Color
Blue, Green, Greenish, Black
Black, Brownish, Brown
Streak
Grey, gray
Brown
For which Rashi?
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Planet
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-
Element of Planets
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Energy
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How to Wear?
Finger
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Ring Metal
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Deities
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Not to wear with
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Powers
-
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Birthstone
Planetary
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Talisman
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Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
4.00-4.624.5-4.8
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Uneven
Cleavage
Indistinct parting on [111]
None, parting may develop along {111}
Mohs Hardness
7.5-85.5
2
10
👆🏻
Chemical Composition
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Fe++Cr2O4
Luster
Vitreous
-
Pleochroism
-
none.
Dispersion
0.030.04
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.790-1.8182.08-2.16
1
3.25
👆🏻
Optic Character
-
-
Crystal System
cubic
Isometric
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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Physical
Neurological
Enhances mental clarity and focus
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Cardiovascular
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Respiratory
Aids in digestion and soothes the stomach
Poor
Reproductive
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Digestive
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Psychology
Protection
Vitality
Healing
Emotional healing
Emotional healing
Qualities Associated
Harmony
Protection