1 Astrology
1.1 Origin
Southern and central Africa
India
1.2 Color
Red, Yellow, Brownish, White, Reddish, Greenish, orange
Blue, Greenish, Greenish, Blue
1.3 Streak
Grey, Yellow, gray
Blue, White
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
2.3 Durability
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2.4 Specific Gravity
3.10-3.202.25-2.33
1
7.18
2.5 Fracture
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Brittle, Metallic, Brittle, Metallic
2.6 Cleavage
Poor to good on (001)
Good on {010}
2.7 Mohs Hardness
2.8 Chemical Composition
(Mg,Fe) 5(SiO 4) 2(F,OH) 2Ulrich Henn and Claudio C.
Ca(VO)Si4O10•4(H2O)
3 Optical Properties
3.1 Luster
Vitreous, Greasy
Vitreous, Pearly
3.2 Pleochroism
X golden yellow to orange
Visible: X=Z= colorless Y= blue
3.3 Dispersion
3.4 Transparency
Transparent, Translucent
Not Available
3.5 Refractive Index
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
3.9 Clarity
Transparent
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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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