1 Astrology
1.1 Origin
USA
Brazil, Southern and central Africa, Sri Lanka
1.2 Color
Blue, Green, Blue, Green, Green
Red, gray
1.3 Streak
Blue, Greenish, White
Red, Black
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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Insoluble in acids
2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
2.6 Cleavage
[001] perfect; [100] distinct
{110} good, 100 moderate, parting on {092} and {011}
2.7 Mohs Hardness
2.8 Chemical Composition
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Weak
Weak to distinct brownish red-green-yellow
3.3 Dispersion
3.4 Transparency
Transparent
Transparent, Translucent
3.5 Refractive Index
1.818-1.9092.609-2.903
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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