1 Astrology
1.1 Origin
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
Madagascar, Sri Lanka
1.2 Color
Blue, Violet, Greenish, Brown, Colorless, Colorless, Blue, Violet, Yellow, gray
White, Colorless, Blue, Red, Green, Yellow, Violet
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
Not Available
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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
Not Available
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1.12.2 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
2.2 Solubility
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
1.5 Fracture
Subconchoidal, Conchoidal, Brittle
Not Available
1.6 Cleavage
Fair on {100}, poor on {001} and {010}
Not Available
1.7 Mohs Hardness
1.8 Chemical Composition
Mg2Al4Si5O18
(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
2 Optical Properties
2.1 Luster
Greasy, Vitreous
Not Available
2.2 Pleochroism
X = pale yellow
Not Available
2.3 Dispersion
2.4 Transparency
Not Available
Gemmological Tables (2004)
2.5 Refractive Index
Not Available1.780
1
3.25
2.6 Optic Character
Not Available
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2.7 Crystal System
Orthorhombic
Not Available
2.8 Birefringence
Not AvailableNot Available
0
0.296
2.9 Clarity
Not Available
Gemmological Tables (2004)
3 Benefits
3.1 Physical
3.1.1 Neurological
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3.1.2 Cardiovascular
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3.1.3 Respiratory
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3.1.4 Reproductive
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3.1.5 Digestive
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3.2 Psychology
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3.3 Healing
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3.4 Qualities Associated
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