1 Astrology
1.1 Origin
USA, Southern and central Africa
China, Canada
1.2 Color
Brown, Green, White, gray, Blue, Yellow
Green, Green, Yellow, Brown, White, gray, Black
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
4.00-4.652.90-3.10
1
7.18
2.5 Fracture
Uneven, Sub-Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Splintery, Granular, Splintery, Granular, Gemstones (2009)
2.6 Cleavage
Perfect on [1011]
Not Available
2.7 Mohs Hardness
2.8 Chemical Composition
ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
3 Optical Properties
3.1 Luster
Vitreous, Pearly
Vitreous, Greasy
3.2 Pleochroism
AbsentWalter Schumann
None
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
1.620-1.8501.600-1.627
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
3.9 Clarity
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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