1 Astrology
1.1 Origin
Kenya, Southern and central Africa
Afghanistan, Southern and central Africa, California
1.2 Color
Green, Brown, Yellow, Red
Violet, Colorless, gray, White
1.3 Streak
1.4 For which Rashi?
1.5 Planet
Not Available
Jupiter, Neptune
1.6 Element of Planets
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
1.9 Deities
1.10 Not to wear with
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1.11 Powers
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
3.55-3.702.80-2.90
1
7.18
2.5 Fracture
Gemstones (2009)
Uneven, UnevenArthur Thomas, Gemstones (2009)
2.6 Cleavage
Not Available
{001} perfect
2.7 Mohs Hardness
2.8 Chemical Composition
Al 2SiO 5Arthur Thomas , Gemstones (2009) More from other references
Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.
3 Optical Properties
3.1 Luster
Vitreous
Vitreous, Pearly
3.2 Pleochroism
Blue stones strong trichroism: colorless/pale blue (greenish or violet)-blue dark blueHerve Nicolas Lazzarelli
X = almost colorless; Y = Z = pink
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
1.710-1.7351.525-1.587
1
3.25
3.6 Optic Character
3.7 Crystal System
3.8 Birefringence
0.012-0.0330.0290-0.0380
0
0.296
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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