1 Astrology
1.1 Origin
Sri Lanka, Southern and central Africa
Madagascar, Southern and central Africa
1.2 Color
Blue
White, Yellow, Blue, Green, Green, gray, Yellow
1.3 Streak
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
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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
Not Available
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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
3.95-4.102.55-2.63
1
7.18
2.5 Fracture
Not Available
Uneven, Uneven, Gems
2.6 Cleavage
Not Available
{001} Perfect, {010} Good
2.7 Mohs Hardness
2.8 Chemical Composition
Al 2O 3Ulrich Henn and Claudio C.
KAlSi 3O 8Arthur Thomas , Gemstones (2009)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Not Available
WeakMichael OâDonoghue
3.3 Dispersion
3.4 Transparency
Transparent, Translucent
Translucent
3.5 Refractive Index
1.757-1.7801.514-1.539
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
Not Available
Triclinic Pinacoidal H-M Symbol ( 1) Space Group: C1
3.8 Birefringence
0.007-0.0100.008-0.010
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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