1 Astrology
1.1 Origin
Southern and central Africa
Not Available
1.2 Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Black, Blue, Yellow, Green
1.3 Streak
Not Available
Grey, Greenish, Brown
1.4 For which Rashi?
Not Available
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1.5 Planet
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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
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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
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2.3 Durability
Not Available
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2.4 Specific Gravity
1.98-2.503.28-3.44
1
7.18
2.5 Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
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
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Not Available
3 Optical Properties
3.1 Luster
Not Available
Vitreous, Silky
3.2 Pleochroism
AbsentWalter Schumann
X = blue
3.3 Dispersion
3.4 Transparency
Translucent
Not Available
3.5 Refractive Index
1.37-1.521.680-1.698
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
Not Available0.005-0.008
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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