1 Astrology
1.1 Origin
Italy, China
Southern and central Africa
1.2 Color
Colorless, White, Blue, gray
Blue, Grey
1.3 Streak
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
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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
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
2.5 Fracture
White, Yellow, Pale blue, Brittle, Uneven
Gemstones of the world (2001)
2.6 Cleavage
Perfect on {100} and {010}, imperfect on {101}
Not Available
2.7 Mohs Hardness
2.8 Chemical Composition
Not Available
SiO 2Walter Schumann , Gemstones of the world (2001)
3 Optical Properties
3.1 Luster
Vitreous, Greasy
Not Available
3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
Not Available
Gemstones of the world (2001)
3.5 Refractive Index
1.672-1.6761.534-1.540
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
Orthorhombic
Not Available
3.8 Birefringence
0.019-0.021Not Available
0
0.296
3.9 Clarity
Not Available
Gemstones of the world (2001)
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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