1 Astrology
1.1 Origin
Australia
Canada, USA, Italy, Russia, Switzerland, Tanzania, Kenya, Sri Lanka
1.2 Color
Brown, Brown, Reddish, Brownish, Yellow, Brown, Reddish, Brownish, Yellow
Green, Yellow, Brown, Violet, Blue
1.3 Streak
Brown, Brownish, Yellow
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1.4 For which Rashi?
Not Available
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1.5 Planet
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1.6 Element of Planets
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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
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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
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2 Physical Properties
2.1 Tenacity
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2.2 Solubility
HCl soluble
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2.3 Durability
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2.4 Specific Gravity
4.27-4.29Not Available
1
7.18
2.5 Fracture
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
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2.6 Cleavage
Perfect {010}
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2.7 Mohs Hardness
2.8 Chemical Composition
FeO(OH)Arthur Thomas , Gemstones (2009)
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3 Optical Properties
3.1 Luster
3.2 Pleochroism
VisibleArthur Thomas
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3.3 Dispersion
3.4 Transparency
Gemstones (2009)
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3.5 Refractive Index
2.26-2.3981.67-1.76
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
0.138Not Available
0
0.296
3.9 Clarity
Gemstones (2009)
Color grading system
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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