1 Astrology
1.1 Origin
Southern and central Africa
Canada
1.2 Color
1.3 Streak
Not Available
Not Available
1.4 For which Rashi?
1.5 Planet
1.6 Element of Planets
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
1.9 Deities
Not Available
Not Available
1.10 Not to wear with
Not Available
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1.11 Powers
Not Available
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1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
Not Available
Not Available
2.2 Solubility
Not Available
Not Available
2.3 Durability
Not Available
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2.4 Specific Gravity
Not AvailableNot Available
1
7.18
2.5 Fracture
Not Available
Conchoidal, Conchoidal, Gemstones of the world (2001)
2.6 Cleavage
Not Available
Not Available
2.7 Mohs Hardness
2.8 Chemical Composition
Not Available
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Not Available
AbsentWalter Schumann
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
Not Available1.37-1.52
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
Not AvailableNot Available
0
0.296
3.9 Clarity
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
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4.1.2 Cardiovascular
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4.1.3 Respiratory
Not Available
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4.1.4 Reproductive
Not Available
Not Available
4.1.5 Digestive
Not Available
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4.2 Psychology
Not Available
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4.3 Healing
Not Available
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4.4 Qualities Associated
Not Available
Not Available