1 Astrology
1.1 Origin
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Southern and central Africa
1.2 Color
Red
White, Colorless, Blue, Red, Green, Yellow, Violet
1.3 Streak
Not Available
Not Available
1.4 For which Rashi?
1.5 Planet
1.6 Element of Planets
Not Available
Not Available
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
Black Madonna, Isis
Not Available
1.10 Not to wear with
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1.11 Powers
Courage, Wealth
Not Available
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
2.63-2.651.98-2.50
1
7.18
2.5 Fracture
Not Available
Conchoidal, Conchoidal, Gemstones of the world (2001)
2.6 Cleavage
Indiscernible
Not Available
2.7 Mohs Hardness
2.8 Chemical Composition
SiO2
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
1.54-1.551.37-1.52
1
3.25
3.6 Optic Character
Not Available
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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
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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
Not Available
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