1 Astrology
1.1 Origin
India, Southern and central Africa, Madagascar
Not Available
1.2 Color
Black, Brownish, Greenish
White, Colorless, Blue, Red, Green, Yellow, Violet
1.3 Streak
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
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
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2.6 Cleavage
2.7 Mohs Hardness
Not Available6.5-7.5
2
10
2.8 Chemical Composition
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Ca3Fe3+2Si3O12
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Very strong: yellow-brown pale yellow
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3.3 Dispersion
3.4 Transparency
Transparent, Translucent
Transparent, Opaque, Transparent to opaque
3.5 Refractive Index
1.635-1.6721.888-1.889
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
0.025Not Available
0
0.296
3.9 Clarity
Transparent
Transparent to opaque
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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