1 Astrology
1.1 Origin
Italy
Canada, USA, Brazil, Italy, Mozambique, Zimbabwe, Russia, Burma, Australia
1.2 Color
Blue, Green
Colorless, gray, Yellow, White
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
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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
2.2 Solubility
Effervesces in cold
insoluble
2.3 Durability
Not Available
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2.4 Specific Gravity
2.5 Fracture
Splintery
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
2.6 Cleavage
Perfect on {100} and {010}
Perfect on {001}, poor on {201} with 38.5° angle between the two
2.7 Mohs Hardness
2.8 Chemical Composition
Not Available
LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
Silky, Vitreous
Vitreous, Pearly
3.2 Pleochroism
Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue
AbsentWalter Schumann
3.3 Dispersion
3.4 Transparency
Not Available
Gemmological Tables (2004) More from other references
3.5 Refractive Index
1.672-1.6881.502-1.523
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
0.139-0.1430.012-0.016
0
0.296
3.9 Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda
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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