1 Astrology
1.1 Origin
Switzerland
Southern and central Africa
1.2 Color
Colorless, Yellow, Blue, Reddish, Black, Reddish, Brown, Blue, gray, Black, Reddish, Brown, Blue, gray
Colorless, Yellow, White, Colorless, White
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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Partially soluble in water
2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
Subconchoidal, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
Not Available
2.6 Cleavage
Perfect on [001] and [011]
Perfect on {10 1 0}
2.7 Mohs Hardness
2.8 Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
Transparent
Transparent, Translucent
3.5 Refractive Index
2.488-2.5621.470-1.491
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
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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