1 Astrology
1.1 Origin
1.2 Color
Black, Blue, Yellow, Green
Brown, Brown, Reddish, Brownish, Yellow, Brown, Reddish, Brownish, Yellow
1.3 Streak
Grey, Greenish, Brown
Brown, Brownish, Yellow
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
Not Available
1.6 Element of Planets
Not Available
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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
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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
Not Available
HCl soluble
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
3.28-3.444.27-4.29
1
7.18
2.5 Fracture
Uneven, Splintery, Brittle
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
2.6 Cleavage
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Perfect {010}
2.7 Mohs Hardness
2.8 Chemical Composition
Not Available
FeO(OH)Arthur Thomas , Gemstones (2009)
3 Optical Properties
3.1 Luster
Vitreous, Silky
Adamantine
3.2 Pleochroism
X = blue
VisibleArthur Thomas
3.3 Dispersion
3.4 Transparency
Not Available
Gemstones (2009)
3.5 Refractive Index
1.680-1.6982.26-2.398
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
3.9 Clarity
Not Available
Gemstones (2009)
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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