1 Astrology
1.1 Origin
Burma, Sri Lanka, India, Madagascar, Kenya, Tanzania, Thailand, Cambodia, China, Australia, USA
Canada
1.2 Color
Colorless, Yellow, Green, Violet, White, Colorless, Blue, Red, Green, Yellow, pink
Colorless, Colorless, Yellow, Green, White, Blue
1.3 Streak
Not Available
Not Available
1.4 For which Rashi?
Pisces, Taurus, Gemini, Libra, Pisces, Taurus, Gemini, Libra, Pisces, Taurus, Gemini, Libra
Not Available
1.5 Planet
1.6 Element of Planets
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
1.9 Deities
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Psychic Power, Prosperity
Not Available
1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
Not Available
Not Available
2.2 Solubility
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
3.95-4.032.70-2.75
1
7.18
2.5 Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
2.6 Cleavage
None, but may exhibit parting
From the Greek for luster, for its pearly luster on the cleavage.
2.7 Mohs Hardness
2.8 Chemical Composition
Al 2 O 3
Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
3 Optical Properties
3.1 Luster
Vitreous, Adamantine, Vitreous, Adamantine
Pearly
3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
Transparent, Translucent, Transparent to opaque
Gemmological Tables (2004) More from other references
3.5 Refractive Index
1.762-1.7881.570-1.591
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
0.008-0.0090.020-0.021
0
0.296
3.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
Not Available
4.1.2 Cardiovascular
Not Available
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4.1.3 Respiratory
Not Available
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4.1.4 Reproductive
Not Available
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4.1.5 Digestive
Not Available
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4.2 Psychology
Not Available
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4.3 Healing
Not Available
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4.4 Qualities Associated
Not Available
Not Available