1 Astrology
1.1 Origin
Mexico
Southern and central Africa
1.2 Color
Blue, Blue, Black
Colorless, White, Blue, Yellow, Grey, Brown, Colorless, White, Blue, Yellow, Grey, Brown
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
2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Irregular/uneven
2.6 Cleavage
Perfect on {0001}
Perfect cleavage parallel to base and prism faces: {001} Perfect, {210} Perfect, {010} Imperfect
2.7 Mohs Hardness
2.8 Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
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3 Optical Properties
3.1 Luster
Resinous
Vitreous, Pearly
3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
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3.5 Refractive Index
1.45-2.621.634-1.637
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
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0
0.296
3.9 Clarity
OpaqueAnthony et al
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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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