1 Astrology
1.1 Origin
Southern and central Africa
Southern and central Africa
1.2 Color
White, Colorless, Blue, Red, Green, Yellow, Violet, Black, Green, Red, Blue, White
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
Not Available
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1.7.2 Ring Metal
Not Available
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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
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2.2 Solubility
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2.3 Durability
Not Available
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2.4 Specific Gravity
3.03-3.182.64-2.69
1
7.18
2.5 Fracture
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)
2.6 Cleavage
{???} Indistinct
Not Available
2.7 Mohs Hardness
2.8 Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Very strong: pale yellow colorless
Not Available
3.3 Dispersion
3.4 Transparency
Transparent
Transparent, Translucent
3.5 Refractive Index
1.614-1.6661.544-1.553
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
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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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