1 Astrology
1.1 Origin
Italy
Southern and central Africa
1.2 Color
Green, Green, gray, Brown, Black
Black, Reddish, gray
1.3 Streak
Greenish, White, Greenish, White
Black, Red
1.4 For which Rashi?
Not Available
Not Available
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
2.58-2.805.51-5.64
1
7.18
2.5 Fracture
Conchoidal, Brittle, Metallic, Conchoidal, Handbook of mineralogy (2001)
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
2.6 Cleavage
{001} Good
Distinct on {10 1 1}
2.7 Mohs Hardness
2.8 Chemical Composition
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
Waxy, Silky, Resinous, Greasy
Adamantine
3.2 Pleochroism
pale greenish yellow.
Moderate; cochineal-red to blood-red
3.3 Dispersion
3.4 Transparency
Translucent
OpaqueUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) Rarely transparentMore from other references
3.5 Refractive Index
1.530-1.5752.792-3.087
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
Monoclinic Domatic H-M Symbol (m) Space Group: Cm
Trigonal
3.8 Birefringence
Not Available0.295-0.296
0
0.296
3.9 Clarity
Translucent
OpaqueUlrich Henn and Claudio C. Milisenda
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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