1 Astrology
1.1 Origin
USA, Southern and central Africa, green, blue, China, India, USA, Italy, green, blue, China, India, USA, Italy
Not Available
1.2 Color
White, Yellow
Black, Blue, Yellow, Green
1.3 Streak
Not Available
Grey, Greenish, Brown
1.4 For which Rashi?
1.5 Planet
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
1.9 Deities
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1.10 Not to wear with
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1.11 Powers
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
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
2.44-2.623.28-3.44
1
7.18
2.5 Fracture
Uneven, Uneven, Gemstones of the world (2001) More from other references
Uneven, Splintery, Brittle
2.6 Cleavage
Not Available
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
2.7 Mohs Hardness
2.8 Chemical Composition
H 4Mg 3Si 2O 9Walter Schumann , Gemstones of the world (2001) More from other references
Not Available
3 Optical Properties
3.1 Luster
Vitreous, Greasy, Silky
Vitreous, Silky
3.2 Pleochroism
AbsentWalter Schumann
X = blue
3.3 Dispersion
3.4 Transparency
Translucent
Not Available
3.5 Refractive Index
1.560-1.5711.680-1.698
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
0.008-0.0140.005-0.008
0
0.296
3.9 Clarity
Translucent
Not Available
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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