1 Astrology
1.1 Origin
Southern and central Africa
Italy
1.2 Color
White, Violet, Blue, Yellow, Brown, Brownish, Colorless, Greenish
Red, Reddish, Brown, Black, Yellow
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
2.5 Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Uneven, Splintery
2.6 Cleavage
Distinct on {100} and {110}
[001] good, [100] distinct
2.7 Mohs Hardness
2.8 Chemical Composition
3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)
Not Available
3 Optical Properties
3.1 Luster
Vitreous, Pearly, Resinous
Vitreous
3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
Transparent, Translucent
Not Available
3.5 Refractive Index
1.540-1.5501.725-1.756
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
0.004-0.0080.025-0.076
0
0.296
3.9 Clarity
Transparent
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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