1 Astrology
1.1 Origin
Brazil, Tanzania, Zimbabwe, Madagascar, Burma, Sri Lanka, India
Sri Lanka
1.2 Color
1.3 Streak
Not Available
Not Available
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
Not Available
1.6 Element of Planets
Not Available
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1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
Not Available
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1.9 Deities
Not Available
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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
Not Available
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
3.62-4.203.69-3.81
1
7.18
2.5 Fracture
ConchoidalGemdat.org, Management Team (2012), ConchoidalGemdat.org, Management Team (2012)
Not Available
2.6 Cleavage
Not Available
Not Available
2.7 Mohs Hardness
2.8 Chemical Composition
(Fe,Mg) 3Al 2(SiO 4) 3gemdat.org , Management Team (2012)
BeAl 2O 4Arthur Thomas , Gemstones (2009)
3 Optical Properties
3.1 Luster
Not Available
Not Available
3.2 Pleochroism
AbsentWalter Schumann
Not Available
3.3 Dispersion
3.4 Transparency
TransparentGemdat.org, Management Team (2012)
Transparent
3.5 Refractive Index
1.73-1.771.739-1.770
1
3.25
3.6 Optic Character
3.7 Crystal System
Not Available
Not Available
3.8 Birefringence
Not Available0.007-0.013
0
0.296
3.9 Clarity
TransparentGemdat.org
Transparent
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
Not Available