1 Astrology
1.1 Origin
Sri Lanka
Mexico, Columbia, Canada
1.2 Color
Green, Red, Blue, Brown, pink
White
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
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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), Conchoidal
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2.6 Cleavage
{0001} Poor
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2.7 Mohs Hardness
Not AvailableNot Available
2
10
2.8 Chemical Composition
Ca(Li 2Al)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
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3 Optical Properties
3.1 Luster
3.2 Pleochroism
Strong: dark brown light brownAnthony et al
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3.3 Dispersion
3.4 Transparency
Transparent
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3.5 Refractive Index
Not AvailableNot Available
1
3.25
3.6 Optic Character
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3.7 Crystal System
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3.8 Birefringence
Not AvailableNot Available
0
0.296
3.9 Clarity
Transparent
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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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