1 Astrology
1.1 Origin
Australia
Southern and central Africa
1.2 Color
Blue, Green, Greenish, Black
Green
1.3 Streak
1.2 For which Rashi?
Not Available
Not Available
1.3 Planet
Not Available
Not Available
1.5 Element of Planets
Not Available
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1.7 How to Wear?
1.7.1 Finger
Not Available
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1.8.1 Ring Metal
Not Available
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1.9 Energy
Not Available
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1.11 Deities
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1.13 Not to wear with
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1.15 Powers
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1.16 Birthstone
1.16.1 Planetary
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1.17.1 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
Not Available
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2.3 Solubility
Not Available
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2.6 Durability
Not Available
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2.7 Specific Gravity
4.00-4.622.77-2.88
1
7.18
5.5 Fracture
Conchoidal, Uneven
Uneven
5.6 Cleavage
Indistinct parting on [111]
Perfect basal
5.7 Mohs Hardness
5.16 Chemical Composition
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)
6 Optical Properties
6.1 Luster
Vitreous
Vitreous, Pearly
6.2 Pleochroism
Not Available
Not Available
6.3 Dispersion
8.4 Transparency
Gemmological Tables (2004) More from other references
Transparent
8.5 Refractive Index
1.790-1.8181.552-1.618
1
3.25
9.7 Optic Character
Not Available
Not Available
9.8 Crystal System
9.9 Birefringence
Not AvailableNot Available
0
0.296
9.15 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
10 Benefits
10.1 Physical
10.1.1 Neurological
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10.1.2 Cardiovascular
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10.1.3 Respiratory
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10.1.4 Reproductive
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10.1.5 Digestive
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10.2 Psychology
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10.3 Healing
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10.4 Qualities Associated
Not Available
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