1 Astrology
1.1 Origin
India, China
Ethiopia, Mexico, Honduras, Guatemala, Brazil, USA, Canada, Madagascar, Tanzania, Czech, Slovakia
1.2 Color
Blue, Yellow, Brown, gray, Reddish, Greenish
Black, Red
1.3 Streak
1.4 For which Rashi?
Not Available
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1.5 Planet
Not Available
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1.6 Element of Planets
polyatomic nonmetal
Not Available
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
Not Available
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1.9 Deities
Not Available
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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
Not Available
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1.12.2 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
Not Available
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2.2 Solubility
2.3 Durability
Not Available
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2.4 Specific Gravity
Not AvailableNot Available
1
7.18
2.5 Fracture
(e.g. graphite).
Not Available
2.6 Cleavage
{???} Imperfect, {???} Imperfect
Not Available
2.7 Mohs Hardness
Not Available5.5-6.5
2
10
2.8 Chemical Composition
Not Available
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3 Optical Properties
3.1 Luster
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3.2 Pleochroism
Not Available
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3.3 Dispersion
3.4 Transparency
Not Available
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3.5 Refractive Index
Not Available1.42-1.47
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
Orthorhombic
Not Available
3.8 Birefringence
Not AvailableNot Available
0
0.296
3.9 Clarity
Not Available
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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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