1 Astrology
1.1 Origin
Austria, Spain, Russia, Canada, Australia
Southern and central Africa
1.2 Color
Colorless, Brownish, Yellow, Green, gray, White
Brownish, Red, Red, orange
1.3 Streak
1.4 For which Rashi?
Not Available
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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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2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
Conchoidal, Brittle
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
2.6 Cleavage
{001} perfect; {111} imperfect, may exhibit parting on , {011}
Not Available
2.7 Mohs Hardness
2.8 Chemical Composition
MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
CaZrBAl 9O 18Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Not Available
Strong dichroism: yellow-brown red to brown-violet (pinkish samples: nearly colorless pale orangy-pink)Herve Nicolas Lazzarelli
3.3 Dispersion
3.4 Transparency
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
Gems
3.5 Refractive Index
1.735-1.7381.787-1.816
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
Not Available0.029
0
0.296
3.9 Clarity
TransparentWalter Schumann
Gems
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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