1 Astrology
1.1 Origin
Australia
Madagascar, Sri Lanka
1.2 Color
Brown, Brown, Reddish, Brownish, Yellow, Brown, Reddish, Brownish, Yellow
White, Colorless, Blue, Red, Green, Yellow, Violet
1.3 Streak
Brown, Brownish, Yellow
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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
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2.2 Solubility
HCl soluble
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2.3 Durability
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2.4 Specific Gravity
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)
(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
VisibleArthur Thomas
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3.3 Dispersion
3.4 Transparency
Gemstones (2009)
Gemmological Tables (2004)
3.5 Refractive Index
3.6 Optic Character
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3.7 Crystal System
Orthorhombic
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3.8 Birefringence
0.138Not Available
0
0.296
3.9 Clarity
Gemstones (2009)
Gemmological Tables (2004)
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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