1 Astrology
1.1 Origin
Southern and central Africa, Zimbabwe, South Africa
Tanzania, Sri Lanka, China
1.2 Color
Green, Blue, Green, Blue, Green
Colorless
1.3 Streak
Greenish, White, Greenish, White, Greenish, White
White
1.4 For which Rashi?
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
Gaia, Goddess, The All
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1.10 Not to wear with
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1.11 Powers
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
Decomposed by acids
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2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
2.6 Cleavage
Perfect on {010}
Imperfect/fair/absent
2.7 Mohs Hardness
2.8 Chemical Composition
(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
3 Optical Properties
3.1 Luster
3.2 Pleochroism
X: very light bluish green; Y and Z: brilliant bluish green
Weak
3.3 Dispersion
3.4 Transparency
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Gemmological Tables (2004) More from other references
3.5 Refractive Index
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
3.9 Clarity
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Color grading system
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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