1 Astrology
1.1 Origin
Southern and central Africa
Canada, USA, Tanzania, Norway
1.2 Color
Black, Reddish, gray
Red, Yellow, Brown, Yellow, Red, pink, Green
1.3 Streak
1.4 For which Rashi?
1.5 Planet
1.6 Element of Planets
Not Available
Not Available
1.7 How to Wear?
1.7.1 Finger
Not Available
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1.7.2 Ring Metal
Not Available
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1.8 Energy
1.9 Deities
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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
2.2 Solubility
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
5.51-5.642.62-2.65
1
7.18
2.5 Fracture
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Gemstones of the world (2001)
2.6 Cleavage
2.7 Mohs Hardness
2.8 Chemical Composition
Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Moderate; cochineal-red to blood-red
Weak or absentWalter Schumann
3.3 Dispersion
3.4 Transparency
OpaqueUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) Rarely transparentMore from other references
Transparent, Translucent, Transparent to translucent
3.5 Refractive Index
2.792-3.0871.53-1.55
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
0.295-0.2960.007-0.010
0
0.296
3.9 Clarity
OpaqueUlrich Henn and Claudio C. Milisenda
Transparent to translucent
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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