1 Astrology
1.1 Origin
Southern and central Africa
Southern and central Africa
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
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1.8 Energy
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
Not Available
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2 Physical Properties
2.1 Tenacity
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2.2 Solubility
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
Not AvailableNot Available
1
7.18
2.8 Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
Not Available
2.9 Cleavage
Not Available
Not Available
2.10 Mohs Hardness
3.5 Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Not Available
4 Optical Properties
4.1 Luster
4.2 Pleochroism
Not Available
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4.3 Dispersion
4.4 Transparency
4.5 Refractive Index
1.37-1.52Not Available
1
3.25
4.6 Optic Character
Not Available
Not Available
4.7 Crystal System
4.8 Birefringence
Not AvailableNot Available
0
0.296
4.9 Clarity
5 Benefits
5.1 Physical
5.1.1 Neurological
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5.1.2 Cardiovascular
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5.1.3 Respiratory
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5.1.4 Reproductive
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5.1.5 Digestive
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5.2 Psychology
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5.3 Healing
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5.4 Qualities Associated
Not Available
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