1 Astrology
1.1 Origin
USA
Kenya, Southern and central Africa
1.2 Color
Colorless, White, Green, White, Green, Brown, Colorless, Green, White, White
Green, Brown, Yellow, Red
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
Easily soluble in cold dilute HCl
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2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
Brittle, Uneven, Brittle, Uneven
Gemstones (2009)
2.6 Cleavage
Good in two directions parallel to the prism faces {110}
Not Available
2.7 Mohs Hardness
2.8 Chemical Composition
CaZn(AsO4)(OH)
Al 2SiO 5Arthur Thomas , Gemstones (2009) More from other references
3 Optical Properties
3.1 Luster
Subadamantine, Silky, Fibrous
Vitreous
3.2 Pleochroism
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Blue stones strong trichroism: colorless/pale blue (greenish or violet)-blue dark blueHerve Nicolas Lazzarelli
3.3 Dispersion
3.4 Transparency
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Transparent
3.5 Refractive Index
3.6 Optic Character
3.7 Crystal System
Orthorhombic
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3.8 Birefringence
3.9 Clarity
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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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