1 Astrology
1.1 Origin
Canada
Canada, USA, Italy, Russia, Switzerland, Tanzania, Kenya, Sri Lanka
1.2 Color
Colorless, White, Blue, Colorless, gray, Green, Yellow, White
Green, Yellow, Brown, Violet, Blue
1.3 Streak
1.4 For which Rashi?
Not Available
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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
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2.3 Durability
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2.4 Specific Gravity
2.42-2.52Not Available
1
7.18
2.5 Fracture
Irregular/uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Not Available
2.6 Cleavage
Perfect on {10 1 0}, poor on {0001}
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2.7 Mohs Hardness
2.8 Chemical Composition
Na 2Ca 2Al 6Si 6O 24(CO 3) 2Walter Schumann , Gemstones of the world (2001) More from other references
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3 Optical Properties
3.1 Luster
Vitreous, Greasy, Pearly
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3.2 Pleochroism
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3.3 Dispersion
3.4 Transparency
Transparent
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3.5 Refractive Index
1.491-1.5241.67-1.76
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
0.012-0.025Not Available
0
0.296
3.9 Clarity
Transparent
Color grading system
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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