1 Astrology
1.1 Origin
Canada, Southern and central Africa, Italy, Australia, India
Brazil
1.2 Color
Violet, Brownish, Yellow, Reddish, Pale pink
Yellow, White, Brown, Brownish, Black
1.3 Streak
White
Brown, Yellow, White
1.4 For which Rashi?
1.5 Planet
Mercury, Jupiter
Not Available
1.6 Element of Planets
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
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
1.12.2 Talisman
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2 Physical Properties
2.1 Tenacity
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2.2 Solubility
2.3 Durability
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2.4 Specific Gravity
2.69-2.793.06-3.25
1
7.18
2.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Sub-Conchoidal, ConchoidalArthur Thomas, Conchoidal, Uneven
2.6 Cleavage
Poor on {0001}
Poor/indistinct on {100}
2.7 Mohs Hardness
2.8 Chemical Composition
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
3 Optical Properties
3.1 Luster
Vitreous
Vitreous, Resinous
3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
1.607-1.6121.639-1.672
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
3.9 Clarity
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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