1 Astrology
1.1 Origin
Sri Lanka, Southern and central Africa
Southern and central Africa
1.2 Color
Blue
Greenish, Yellow, White
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
Not Available
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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
3.95-4.103.17-3.18
1
7.18
2.5 Fracture
Not Available
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2.6 Cleavage
Not Available
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2.7 Mohs Hardness
2.8 Chemical Composition
Al 2O 3Ulrich Henn and Claudio C.
Ca 5(PO 4) 3ClAnthony et al , Handbook of mineralogy (2001)
3 Optical Properties
3.1 Luster
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3.2 Pleochroism
Not Available
Weak to moderate; in pale colors.Anthony et al
3.3 Dispersion
3.4 Transparency
Transparent, Translucent
Transparent
3.5 Refractive Index
1.757-1.7801.665-1.667
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
Not Available
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3.8 Birefringence
0.007-0.010Not Available
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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