1 Astrology
1.1 Origin
Pakistan, Italy, Russia, China, Brazil, Switzerland, Madagascar, Austria, Canada
Sri Lanka
1.2 Color
Reddish, Brown, Yellow, Green, Red, gray
White, Colorless, Blue, Red, Green, Yellow, Violet
1.3 Streak
Reddish, White
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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
Sub-Conchoidal, Conchoidal, Brittle
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
2.6 Cleavage
Distinct on [110], parting on {221}
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2.7 Mohs Hardness
2.8 Chemical Composition
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SiO 2Walter Schumann , Gemstones of the world (2001)
3 Optical Properties
3.1 Luster
Subadamantine, Resinous
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3.2 Pleochroism
Strong: X = nearly colorless; Y = yellow to green; Z = red to yellow-orange
AbsentWalter Schumann
3.3 Dispersion
3.4 Transparency
Not Available
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
3.5 Refractive Index
1.885-1.9901.544-1.553
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
3.9 Clarity
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TransparentWalter Schumann
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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