1 Astrology
1.1 Origin
Canada
Southern and central Africa
1.2 Color
White, Reddish, gray, Brown, Brownish
Colorless, Greenish, Colorless, Green, gray, Yellow
1.3 Streak
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
Not Available
1.6 Element of Planets
Not Available
Not Available
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
Not Available
Not Available
1.9 Deities
Not Available
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1.10 Not to wear with
Not Available
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1.11 Powers
Not Available
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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
Not Available
2.3 Durability
Not Available
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2.4 Specific Gravity
2.55-2.653.21-3.38
1
7.18
2.5 Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Irregular/uneven, Uneven
2.6 Cleavage
[1010] Poor
Perfect on {001}
2.7 Mohs Hardness
2.8 Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references
3 Optical Properties
3.1 Luster
Vitreous, Greasy
Vitreous
3.2 Pleochroism
Not Available
StrongArthur Thomas
3.3 Dispersion
3.4 Transparency
Transparent, Translucent
Transparent
3.5 Refractive Index
1.529-1.5471.670-1.734
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
0.003-0.0040.006-0.011
0
0.296
3.9 Clarity
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
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4.1.2 Cardiovascular
Not Available
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4.1.3 Respiratory
Not Available
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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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