1 Astrology
1.1 Origin
Southern and central Africa
Not Available
1.2 Color
Blue, Grey
Brown, Yellow, White, Brown, Greenish, Yellow, White
1.3 Streak
Not Available
White, gray
1.4 For which Rashi?
Not Available
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1.5 Planet
Not Available
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1.6 Element of Planets
Not Available
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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
Not Available
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1.9 Deities
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1.10 Not to wear with
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1.11 Powers
Not Available
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1.12 Birthstone
1.12.1 Planetary
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1.12.2 Talisman
Not Available
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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
2.5 Fracture
Gemstones of the world (2001)
Uneven, Even, Yellow, White
2.6 Cleavage
Not Available
Perfect on the {001}
2.7 Mohs Hardness
2.8 Chemical Composition
SiO 2Walter Schumann , Gemstones of the world (2001)
K(Mg,Fe++)3[AlSi3O10(OH,F)2
3 Optical Properties
3.1 Luster
Not Available
Vitreous, Pearly
3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
Gemstones of the world (2001)
Not Available
3.5 Refractive Index
1.534-1.5401.565-1.625
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
Not Available0.03-0.07
0
0.296
3.9 Clarity
Gemstones of the world (2001)
Not Available
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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