1 Astrology
1.1 Origin
Brazil, Southern and central Africa, Sri Lanka
Let us know how we can update this page, (Click for more details), Not Available, Southern and central Africa
1.2 Color
1.3 Streak
1.4 For which Rashi?
1.5 Planet
1.6 Element of Planets
Not Available
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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
1.9 Deities
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Black Madonna, Isis
1.10 Not to wear with
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1.11 Powers
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Courage, Wealth
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
Insoluble in acids
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2.3 Durability
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2.4 Specific Gravity
4.20-4.302.63-2.65
1
7.18
2.5 Fracture
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Not Available
2.6 Cleavage
{110} good, 100 moderate, parting on {092} and {011}
Indiscernible
2.7 Mohs Hardness
2.8 Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
SiO2
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Weak to distinct brownish red-green-yellow
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3.3 Dispersion
3.4 Transparency
Transparent, Translucent
Opaque
3.5 Refractive Index
2.609-2.9031.54-1.55
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
0.296Not 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
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