1 Astrology
1.1 Origin
Burma, Sri Lanka, India, Madagascar, Kenya, Tanzania, Thailand, Cambodia, China, Australia, USA
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1.2 Color
Colorless, Yellow, Green, Violet, White, Colorless, Blue, Red, Green, Yellow, pink
Green, Yellow, Brown, White, Colorless, Blue, Brownish, Black
1.3 Streak
1.4 For which Rashi?
Pisces, Taurus, Gemini, Libra, Pisces, Taurus, Gemini, Libra, Pisces, Taurus, Gemini, Libra
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1.5 Planet
1.6 Element of Planets
1.7 How to Wear?
1.7.1 Finger
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1.7.2 Ring Metal
Not Available
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1.8 Energy
1.9 Deities
1.10 Not to wear with
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1.11 Powers
Psychic Power, Prosperity
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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
2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Uneven, Subconchoidal, UnevenArthur Thomas, Fibrous
2.6 Cleavage
None, but may exhibit parting
[110] perfect, [101] good, [010] distinct
2.7 Mohs Hardness
2.8 Chemical Composition
Al 2 O 3
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
Vitreous, Adamantine, Vitreous, Adamantine
Vitreous, Resinous, Pearly
3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
Transparent, Translucent, Transparent to opaque
Gems
3.5 Refractive Index
1.762-1.7881.518-1.561
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
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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