1 Astrology
1.1 Origin
Switzerland
Russia, Madagascar, Brazil
1.2 Color
Brown, Brownish, Yellow, Black, Reddish
Green, Green, White, Blue
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
Not Available
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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
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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
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, Uneven, Gems, Sixth Edition (2006)
2.6 Cleavage
Distinct on {010}
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
2.7 Mohs Hardness
2.8 Chemical Composition
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
KAlSi3O8
3 Optical Properties
3.1 Luster
3.2 Pleochroism
X = colorless; Y = pale yellow; Z = golden yellow
WeakMichael OâDonoghue
3.3 Dispersion
3.4 Transparency
Blue Chart Gem Identification (2010) More from other references
Translucent, Translucent to opaque
3.5 Refractive Index
1.736-1.7621.522-1.530
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
0.009-0.0150.008-0.010
0
0.296
3.9 Clarity
Blue Chart Gem Identification (2010) More from other references
Translucent
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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