1 Astrology
1.1 Origin
Russia, Canada, Australia, India, Brazil
Southern and central Africa
1.6 Color
Red, Violet, Blue, Green, Grey
Blue
1.9 Streak
1.13 For which Rashi?
Not Available
Not Available
1.18 Planet
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1.23 Element of Planets
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1.25 Energy
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1.27 How to Wear?
1.27.2 Finger
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1.28.2 Ring Metal
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4.2 Deities
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4.3 Not to wear with
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5.1 Powers
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5.3 Birthstone
5.5.1 Planetary
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5.10.1 Talisman
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6 Physical Properties
6.1 Tenacity
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6.3 Solubility
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6.4 Durability
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6.5 Specific Gravity
6.15 Fracture
Not Available
Brittle, Metallic
6.18 Cleavage
Not Available
Imperfect in one direction
6.20 Mohs Hardness
9.5 Chemical Composition
Not Available
CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
10 Optical Properties
10.1 Luster
10.3 Pleochroism
11.2 Dispersion
11.11 Transparency
Not Available
Transparent
11.13 Refractive Index
11.24 Optic Character
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11.25 Crystal System
11.26 Birefringence
Not Available0.065
0
0.296
14.2 Clarity
Color grading system
Transparent
15 Benefits
15.2 Physical
15.2.2 Neurological
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15.4.1 Cardiovascular
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15.8.1 Respiratory
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15.10.1 Reproductive
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16.2.2 Digestive
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16.3 Psychology
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16.4 Healing
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16.5 Qualities Associated
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