1 Astrology
1.1 Origin
1.2 Color
Green, Yellow, Colorless, Grey, Brown, White, Red
Green, Red, Blue, Brown, pink
1.4 Streak
1.6 For which Rashi?
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1.8 Planet
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1.10 Element of Planets
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1.12 How to Wear?
1.12.1 Finger
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1.13.2 Ring Metal
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1.14 Energy
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1.16 Deities
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1.18 Not to wear with
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1.20 Powers
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1.22 Birthstone
1.22.1 Planetary
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1.23.2 Talisman
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2 Physical Properties
2.1 Tenacity
3.2 Solubility
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3.4 Durability
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3.6 Specific Gravity
3.8 Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal
3.10 Cleavage
Imperfect- [10 1 1]
{0001} Poor
3.12 Mohs Hardness
4.4 Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Ca(Li 2Al)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
5 Optical Properties
5.1 Luster
Resinous, Subadamantine
Vitreous
5.2 Pleochroism
Weak
Strong: dark brown light brownAnthony et al
5.3 Dispersion
5.6 Transparency
5.7 Refractive Index
2.042-2.059Not Available
1
3.25
5.11 Optic Character
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5.12 Crystal System
5.13 Birefringence
0.010Not Available
0
0.296
6.1 Clarity
7 Benefits
7.1 Physical
7.1.1 Neurological
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7.1.3 Cardiovascular
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7.1.5 Respiratory
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7.1.7 Reproductive
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7.2.1 Digestive
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7.4 Psychology
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7.6 Healing
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7.7 Qualities Associated
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