1 Astrology
1.1 Origin
1.2 Color
Yellow, Reddish, Brown, Brownish, Green, gray, Colorless
Reddish, White, Violet, gray, Black, Reddish, White, Violet, gray, Black
1.3 Streak
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
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
UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic
2.6 Cleavage
Good on {100} and {110}
{100} Good, {010} Good, {001} Good
2.7 Mohs Hardness
2.8 Chemical Composition
Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.
CoAsSAnthony et al , Handbook of mineralogy (2001)
3 Optical Properties
3.1 Luster
Vitreous, Pearly
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3.2 Pleochroism
Weak; O = colorless to yellow; E = colorless to honey-yellow
Very weak
3.3 Dispersion
3.4 Transparency
Transparent, Translucent
Gems
3.5 Refractive Index
1.610-1.647Not Available
1
3.25
3.6 Optic Character
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3.7 Crystal System
tetragonal
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: P ca21
3.8 Birefringence
0.021Not Available
0
0.296
3.9 Clarity
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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