1 Astrology
1.1 Origin
Russia, Madagascar, Brazil
Sri Lanka
1.2 Color
Green, Green, White, Blue
Yellow
1.3 Streak
1.4 For which Rashi?
1.5 Planet
1.6 Element of Planets
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
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1.8 Energy
1.9 Deities
1.10 Not to wear with
Not Available
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1.11 Powers
Not Available
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1.12 Birthstone
1.12.1 Planetary
Not Available
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1.12.2 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
Not Available
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2.2 Solubility
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
2.55-2.573.69-3.81
1
7.18
2.5 Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Not Available
2.6 Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
Not Available
2.7 Mohs Hardness
2.8 Chemical Composition
KAlSi3O8
BeAl 2O 4Arthur Thomas , Gemstones (2009)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
WeakMichael OâDonoghue
Not Available
3.3 Dispersion
3.4 Transparency
Translucent, Translucent to opaque
Transparent
3.5 Refractive Index
1.522-1.5301.739-1.770
1
3.25
3.6 Optic Character
3.7 Crystal System
3.8 Birefringence
0.008-0.0100.007-0.013
0
0.296
3.9 Clarity
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
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4.1.2 Cardiovascular
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4.1.3 Respiratory
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4.1.4 Reproductive
Not Available
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4.1.5 Digestive
Not Available
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4.2 Psychology
Not Available
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4.3 Healing
Not Available
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4.4 Qualities Associated
Not Available
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