1 Astrology
1.1 Origin
Brazil, Colombia, Southern and central Africa
Southern and central Africa
1.2 Color
Greenish, Blue, Colorless, White, Green
Black, White, Greenish, 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
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2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
3.08-3.123.45-3.55
1
7.18
2.7 Fracture
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle, Metallic
Uneven
2.8 Cleavage
{010} Perfect
{100} Perfect, {010} Perfect
2.9 Mohs Hardness
2.13 Chemical Composition
BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Fe,Mg) 2Si 2O 6Ulrich Henn and Claudio C.
3 Optical Properties
3.1 Luster
Vitreous
Vitreous, Pearly
3.2 Pleochroism
Weak: colorless-(greenish) yellow
Green stones strong: (dark) bluish-green brownish-red (yellowish)Herve Nicolas Lazzarelli
3.3 Dispersion
3.5 Transparency
Gemmological Tables (2004) More from other references
Transparent, Translucent
3.6 Refractive Index
1.650-1.6771.673-1.731
1
3.25
3.7 Optic Character
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3.8 Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Orthorhombic
3.9 Birefringence
3.10 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
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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