1 Astrology
1.1 Origin
Kenya, Southern and central Africa
Southern and central Africa
1.2 Color
Green, Brown, Yellow, Red
White, Colorless, Blue, Red, Green, Yellow, Violet
1.3 Streak
Not Available
Not Available
1.4 For which Rashi?
Not Available
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1.5 Planet
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1.6 Element of Planets
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1.7 How to Wear?
1.7.1 Finger
Not Available
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1.7.2 Ring Metal
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1.8 Energy
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1.9 Deities
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1.10 Not to wear with
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1.11 Powers
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1.12 Birthstone
1.12.1 Planetary
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1.12.2 Talisman
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2 Physical Properties
2.1 Tenacity
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2.2 Solubility
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2.3 Durability
Not Available
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2.4 Specific Gravity
3.55-3.702.55-2.70
1
7.18
2.5 Fracture
Gemstones (2009)
Not Available
2.6 Cleavage
Not Available
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2.7 Mohs Hardness
2.8 Chemical Composition
Al 2SiO 5Arthur Thomas , Gemstones (2009) More from other references
SiO 2Ulrich Henn and Claudio C.
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Blue stones strong trichroism: colorless/pale blue (greenish or violet)-blue dark blueHerve Nicolas Lazzarelli
Not Available
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
1.710-1.7351.530-1.543
1
3.25
3.6 Optic Character
3.7 Crystal System
Not Available
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3.8 Birefringence
0.012-0.0330.008-0.010
0
0.296
3.9 Clarity
4 Benefits
4.1 Physical
4.1.1 Neurological
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4.1.2 Cardiovascular
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4.1.3 Respiratory
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4.1.4 Reproductive
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4.1.5 Digestive
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4.2 Psychology
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4.3 Healing
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4.4 Qualities Associated
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