1 Astrology
1.1 Origin
Canada, Southern and central Africa
Madagascar, Southern and central Africa
1.2 Color
Violet, Colorless, pink
White, Yellow, Blue, Green, Green, gray, Yellow
1.3 Streak
1.4 For which Rashi?
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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
2.51-2.532.55-2.63
1
7.18
2.5 Fracture
Conchoidal, Splintery
Uneven, Uneven, Gems
2.6 Cleavage
None
{001} Perfect, {010} Good
2.7 Mohs Hardness
2.8 Chemical Composition
KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
KAlSi 3O 8Arthur Thomas , Gemstones (2009)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Colorless
WeakMichael OâDonoghue
3.3 Dispersion
3.4 Transparency
Gemmological Tables (2004) More from other references
Translucent
3.5 Refractive Index
1.511-1.5321.514-1.539
1
3.25
3.6 Optic Character
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3.7 Crystal System
Hexagonal
Triclinic Pinacoidal H-M Symbol ( 1) Space Group: C1
3.8 Birefringence
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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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