1 Astrology
1.1 Origin
1.2 Color
Colorless, White, Red, gray, pink
Brownish, Black, Reddish, Brown, Blue
1.3 Streak
1.4 For which Rashi?
Not Available
Not Available
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
Not Available
Not Available
1.7.2 Ring Metal
Not Available
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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
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.5 Fracture
Conchoidal, Brittle
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
2.6 Cleavage
Perfect on {10 1 }; parting on {010}
{0001} good, {10 1 0} parting
2.7 Mohs Hardness
2.8 Chemical Composition
Not Available
(Ca,Ce)(Al,Ti,Mg)12O19
3 Optical Properties
3.1 Luster
Vitreous, Resinous
Vitreous
3.2 Pleochroism
Not Available
O = brownish gray; E = gray
3.3 Dispersion
3.4 Transparency
Not Available
Handbook of mineralogy (2001)
3.5 Refractive Index
1.546-1.5481.79-1.807
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
0.021Not Available
0
0.296
3.9 Clarity
Not Available
Handbook of mineralogy (2001)
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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