1 Astrology
1.1 Origin
Austria
Southern and central Africa
1.2 Color
Green, Brown
Brownish, Red, Red, orange
1.3 Streak
1.4 For which Rashi?
1.5 Planet
1.6 Element of Planets
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
1.9 Deities
1.10 Not to wear with
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1.11 Powers
Courage, Protection
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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
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2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
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ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
2.6 Cleavage
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2.7 Mohs Hardness
2.8 Chemical Composition
(Mg,Fe) 2Si 2O 6Ulrich Henn and Claudio C.
CaZrBAl 9O 18Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
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3.2 Pleochroism
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Strong dichroism: yellow-brown red to brown-violet (pinkish samples: nearly colorless pale orangy-pink)Herve Nicolas Lazzarelli
3.3 Dispersion
3.4 Transparency
Transparent, Translucent
Gems
3.5 Refractive Index
3.6 Optic Character
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3.7 Crystal System
Orthorhombic
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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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