1 Astrology
1.1 Origin
1.6 Color
Blue, White, Grey, Yellow, Green, Colorless, Red, gray
Colorless, White, Yellow, White, Greenish, gray, Brown, Colorless, Yellow
1.11 Streak
1.15 For which Rashi?
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1.19 Planet
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1.23 Element of Planets
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1.25 Energy
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1.28 How to Wear?
1.29.1 Finger
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1.31.1 Ring Metal
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1.35 Deities
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1.39 Not to wear with
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1.41 Powers
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1.43 Birthstone
1.43.2 Planetary
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3.0.1 Talisman
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5 Physical Properties
5.2 Tenacity
5.5 Solubility
Gelatinises in acids
insoluble
5.9 Durability
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5.11 Specific Gravity
5.20 Fracture
Uneven, Conchoidal, Brittle
Conchoidal, Brittle, Conchoidal
5.21 Cleavage
Distinct on {110}
{010} perfect, {110} distinct, {100} in traces
5.22 Mohs Hardness
8.5 Chemical Composition
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
9 Optical Properties
9.1 Luster
9.2 Pleochroism
9.3 Dispersion
9.8 Transparency
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Transparent
9.9 Refractive Index
9.21 Optic Character
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9.22 Crystal System
9.23 Birefringence
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0
0.296
12.11 Clarity
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Transparent
13 Benefits
13.1 Physical
13.1.1 Neurological
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13.1.2 Cardiovascular
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13.1.3 Respiratory
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13.1.4 Reproductive
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13.1.5 Digestive
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13.2 Psychology
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13.3 Healing
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13.4 Qualities Associated
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