1 Astrology
1.1 Origin
Southern and central Africa
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe
1.2 Color
1.3 Streak
Not Available
Brownish, Red, Black
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
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2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
Not Available
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)
2.6 Cleavage
Not Available
Good in one direction
2.7 Mohs Hardness
2.8 Chemical Composition
Not Available
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Not Available
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3.3 Dispersion
3.4 Transparency
Not Available
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
3.5 Refractive Index
1.698-1.7232.190-2.457
1
3.25
3.6 Optic Character
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3.7 Crystal System
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Orthorhombic
3.8 Birefringence
3.9 Clarity
Not Available
TransparentWalter Schumann
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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