1 Astrology
1.2 Origin
Sri Lanka
USA, Southern and central Africa, Australia, Canada
1.3 Color
1.4 Streak
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1.2 For which Rashi?
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2.3 Planet
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2.5 Element of Planets
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2.8 Energy
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2.11 How to Wear?
2.11.1 Finger
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2.12.1 Ring Metal
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2.15 Deities
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2.18 Not to wear with
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2.20 Powers
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2.23 Birthstone
2.23.1 Planetary
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2.25.1 Talisman
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2 Physical Properties
2.1 Tenacity
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2.4 Solubility
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3.3 Durability
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3.6 Specific Gravity
3.69-3.81Not Available
1
7.18
5.7 Fracture
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5.8 Cleavage
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5.10 Mohs Hardness
6.4 Chemical Composition
BeAl 2O 4Arthur Thomas , Gemstones (2009)
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7 Optical Properties
7.1 Luster
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7.2 Pleochroism
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7.3 Dispersion
10.4 Transparency
Transparent
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10.5 Refractive Index
1.739-1.770Not Available
1
3.25
10.15 Optic Character
10.16 Crystal System
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10.17 Birefringence
0.007-0.013Not Available
0
0.296
12.6 Clarity
Transparent
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13 Benefits
13.1 Physical
13.1.1 Neurological
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13.1.2 Cardiovascular
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13.1.3 Respiratory
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13.1.4 Reproductive
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13.1.5 Digestive
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13.2 Psychology
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13.3 Healing
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13.4 Qualities Associated
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