1 Astrology
1.1 Origin
1.3 Color
Reddish, Brown, Red, pink, pink
Black, Blue, Yellow, Green
1.5 Streak
White
Grey, Greenish, Brown
1.7 For which Rashi?
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1.9 Planet
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1.11 Element of Planets
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1.13 How to Wear?
1.13.1 Finger
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1.13.3 Ring Metal
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1.15 Energy
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1.17 Deities
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1.19 Not to wear with
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1.21 Powers
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1.23 Birthstone
1.23.1 Planetary
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1.23.3 Talisman
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3 Physical Properties
3.1 Tenacity
3.3 Solubility
Partly soluble in HCl.
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3.5 Durability
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3.7 Specific Gravity
3.32-3.433.28-3.44
1
7.18
3.9 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Splintery, Brittle
3.11 Cleavage
{100} perfect; {110} and {1 1 0} good; {010} poor
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
3.13 Mohs Hardness
3.15 Chemical Composition
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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5 Optical Properties
5.3 Luster
5.4 Pleochroism
5.6 Dispersion
5.7 Transparency
Transparent, Translucent
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5.8 Refractive Index
1.662-1.7071.680-1.698
1
3.25
5.11 Optic Character
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5.12 Crystal System
5.13 Birefringence
0.013-0.0150.005-0.008
0
0.296
6.3 Clarity
Transparent
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7 Benefits
7.1 Physical
7.1.1 Neurological
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7.1.2 Cardiovascular
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7.1.3 Respiratory
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7.1.4 Reproductive
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7.1.5 Digestive
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7.2 Psychology
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7.3 Healing
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7.4 Qualities Associated
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