1 Astrology
1.1 Origin
1.2 Color
Red, Reddish, Brown, Black, Brown, Reddish, orange
Blue, Greenish
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
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven
2.6 Cleavage
Poor on {120}, in traces on {001}
{110} Good
2.7 Mohs Hardness
1.13 Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Fe2+ ,Mg)Al 2(PO 4) 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
2 Optical Properties
2.1 Luster
3.2 Pleochroism
Very weak
Colorless blueAnthony et al
3.4 Dispersion
3.7 Transparency
Gemmological Tables (2004) More from other references
Gemmological Tables (2004) More from other references
3.8 Refractive Index
2.583-2.7411.639-1.680
1
3.25
3.12 Optic Character
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3.13 Crystal System
Orthorhombic
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3.14 Birefringence
4.4 Clarity
Gemmological Tables (2004) More from other references
TransparentUlrich Henn and Claudio C. Milisenda
5 Benefits
5.1 Physical
5.1.1 Neurological
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5.1.2 Cardiovascular
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5.1.3 Respiratory
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5.1.4 Reproductive
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5.1.5 Digestive
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5.2 Psychology
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5.3 Healing
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5.4 Qualities Associated
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