1 Astrology
1.1 Origin
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe
Brazil, USA, Canada, Madagascar, Sri Lanka, India, Burma
1.2 Color
Brown
Blue, Violet, Blue, Yellow, Grey
1.3 Streak
Brownish, Red, Black
Not Available
1.4 For which Rashi?
Not Available
Libra, Sagittarius, Taurus, Libra, Sagittarius, Taurus, Libra, Sagittarius, Taurus
1.5 Planet
1.6 Element of Planets
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
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1.8 Energy
1.9 Deities
1.10 Not to wear with
Not Available
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1.11 Powers
Not Available
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1.12 Birthstone
1.12.1 Planetary
Not Available
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1.12.2 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
Not Available
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2.2 Solubility
Not Available
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2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.5 Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Not Available
2.6 Cleavage
Good in one direction
3,1
2.7 Mohs Hardness
2.8 Chemical Composition
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Mg2Al4Si5O18
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Not Available
Not Available
3.3 Dispersion
3.4 Transparency
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
Transparent, Translucent, Transparent to translucent
3.5 Refractive Index
2.190-2.4571.52-1.56
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
Orthorhombic
Orthorhombic
3.8 Birefringence
0.083Not Available
0
0.296
3.9 Clarity
TransparentWalter Schumann
Transparent to translucent
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
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4.1.2 Cardiovascular
Not Available
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4.1.3 Respiratory
Not Available
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4.1.4 Reproductive
Not Available
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4.1.5 Digestive
Not Available
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4.2 Psychology
Not Available
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4.3 Healing
Not Available
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4.4 Qualities Associated
Not Available
Not Available