1 Astrology
1.1 Origin
Australia
Mexico, Thailand, Italy, Austria
1.2 Color
Brown, Brown, Reddish, Brownish, Yellow, Brown, Reddish, Brownish, Yellow
Green, Brown, Colorless, Greenish, gray, Yellow, White
1.3 Streak
Brown, Brownish, Yellow
White
1.4 For which Rashi?
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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
2.2 Solubility
2.3 Durability
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2.4 Specific Gravity
4.27-4.293.30-3.50
1
7.18
2.5 Fracture
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
2.6 Cleavage
Perfect {010}
Perfect on {110}, poor on {101}, {001} rare
2.7 Mohs Hardness
2.8 Chemical Composition
FeO(OH)Arthur Thomas , Gemstones (2009)
Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
Adamantine
Vitreous, Adamantine, Silky
3.2 Pleochroism
VisibleArthur Thomas
AbsentWalter Schumann
3.3 Dispersion
3.4 Transparency
Gemstones (2009)
Transparent, Translucent
3.5 Refractive Index
2.26-2.3981.614-1.636
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
Orthorhombic
Orthorhombic
3.8 Birefringence
3.9 Clarity
Gemstones (2009)
Transparent
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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