1 Astrology
1.1 Origin
Brazil, Kenya, Madagascar, Mozambique, Sri Lanka
Southern and central Africa
1.2 Color
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
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
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2.3 Durability
Not Available
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2.4 Specific Gravity
2.5 Fracture
Conchoidal
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
2.6 Cleavage
none, may show indistinct parting
Distinct on {10 1 1}
2.7 Mohs Hardness
2.8 Chemical Composition
(Mg,Fe)3Al2Si3O12
Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
Greasy, Vitreous
Adamantine
3.2 Pleochroism
None
Moderate; cochineal-red to blood-red
3.3 Dispersion
3.4 Transparency
Gemmological Tables (2004)
OpaqueUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) Rarely transparentMore from other references
3.5 Refractive Index
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
0.010-0.0140.295-0.296
0
0.296
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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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