1 Astrology
1.1 Origin
1.2 Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Black, Brown
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
2.7 Fracture
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
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2.8 Cleavage
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2.9 Mohs Hardness
2.13 Chemical Composition
SiO 2Walter Schumann , Gemstones of the world (2001)
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3 Optical Properties
3.1 Luster
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3.2 Pleochroism
AbsentWalter Schumann
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3.3 Dispersion
3.5 Transparency
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
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3.6 Refractive Index
1.544-1.553Not Available
1
3.25
3.7 Optic Character
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3.8 Crystal System
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3.9 Birefringence
0.009Not Available
0
0.296
3.10 Clarity
TransparentWalter Schumann
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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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