1 Astrology
1.1 Origin
Tanzania, Madagascar, Kenya, Sri Lanka, Burma, Australia
Southern and central Africa
1.2 Color
Green, Brown, Colorless, Greenish, Yellow
Green, Blue, Yellow, White
1.3 Streak
1.4 For which Rashi?
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1.5 Planet
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1.6 Element of Planets
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1.7 How to Wear?
1.7.1 Finger
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1.7.2 Ring Metal
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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
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2.4 Specific Gravity
2.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Uneven
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2.6 Cleavage
Good on {110}
{001} Perfect
2.7 Mohs Hardness
2.8 Chemical Composition
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Mg 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
X = colorless to green; Y = colorless
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3.3 Dispersion
3.4 Transparency
Gemmological Tables (2004) More from other references
TranslucentAnthony et al, Handbook of mineralogy (2001)
3.5 Refractive Index
1.660-1.6851.538-1.560
1
3.25
3.6 Optic Character
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3.7 Crystal System
Orthorhombic
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3.8 Birefringence
0.012-0.017Not Available
0
0.296
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TranslucentAnthony et al
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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