1 Astrology
1.1 Origin
1.2 Color
Green, Red, Blue, Brown, pink
Colorless, White, gray, Brownish, Greenish
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
1.13 Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal
Micaceous, Brittle
1.14 Cleavage
{0001} Poor
Perfect on the {001}
1.15 Mohs Hardness
1.16 Chemical Composition
Ca(Li 2Al)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
KAl 2AlSi 3O 10(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
2 Optical Properties
2.1 Luster
Vitreous
Vitreous, Silky, Pearly
2.2 Pleochroism
Strong: dark brown light brownAnthony et al
Weak
2.3 Dispersion
2.4 Transparency
2.5 Refractive Index
Not Available1.552-1.618
1
3.25
2.6 Optic Character
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2.7 Crystal System
2.8 Birefringence
Not AvailableNot Available
0
0.296
2.9 Clarity
3 Benefits
3.1 Physical
3.1.1 Neurological
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3.1.2 Cardiovascular
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3.1.3 Respiratory
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3.1.4 Reproductive
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3.1.5 Digestive
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3.2 Psychology
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3.3 Healing
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3.4 Qualities Associated
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