1 Astrology
1.1 Origin
Southern and central Africa, Sixth Edition (2006)
Not Available
1.2 Color
Blue, Green, Blue, Brown
Brown, Yellow, White, Brown, Greenish, Yellow, White
1.3 Streak
White, Blue, Green
White, gray
1.4 For which Rashi?
1.5 Planet
1.6 Element of Planets
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
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
Not Available
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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
Sub-Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, Even, Yellow, White
2.6 Cleavage
none
Perfect on the {001}
2.7 Mohs Hardness
2.8 Chemical Composition
Cu2H2Si2O5(OH)4
K(Mg,Fe++)3[AlSi3O10(OH,F)2
3 Optical Properties
3.1 Luster
Vitreous, Greasy
Vitreous, Pearly
3.2 Pleochroism
AbsentWalter Schumann
Strong
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
1.460-1.5701.565-1.625
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
0.023-0.0500.03-0.07
0
0.296
3.9 Clarity
Gemmological Tables (2004) More from other references
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
Not Available
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4.1.5 Digestive
Not Available
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4.2 Psychology
Not Available
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4.3 Healing
Not Available
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4.4 Qualities Associated
Not Available
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