1 Astrology
1.1 Origin
Southern and central Africa, Vietnam
Pakistan, Italy, Russia, China, Brazil, Switzerland, Madagascar, Austria, Canada
1.2 Color
Green, Black, Brown
Reddish, Brown, Yellow, Green, Red, gray
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
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2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
3.04-3.263.48-3.60
1
7.18
2.5 Fracture
Splintery, Brittle, Uneven
Sub-Conchoidal, Conchoidal, Brittle
2.6 Cleavage
{110} perfect
Distinct on [110], parting on {221}
2.7 Mohs Hardness
2.8 Chemical Composition
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
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3 Optical Properties
3.1 Luster
Vitreous
Subadamantine, Resinous
3.2 Pleochroism
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Strong: X = nearly colorless; Y = yellow to green; Z = red to yellow-orange
3.3 Dispersion
3.4 Transparency
Transparent
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3.5 Refractive Index
1.613-1.6631.885-1.990
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
3.9 Clarity
Transparent
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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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