1 Astrology
1.1 Origin
Guatemala, Russia, Columbia, Canada, Italy
Madagascar
1.2 Color
White, Red, Brown, Green, gray
Green
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
3.28-3.382.85-3.00
1
7.18
2.5 Fracture
Splintery, UnevenArthur Thomas, Difficult, Fibrous
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
2.6 Cleavage
2.7 Mohs Hardness
2.8 Chemical Composition
NaAlSi 2O 6Ulrich Henn and Claudio C.
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
3 Optical Properties
3.1 Luster
3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
Translucent
Gemmological Tables (2004) More from other references
3.5 Refractive Index
1.652-1.6881.578-1.639
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
0.013-0.0200.037-0.039
0
0.296
3.9 Clarity
Translucent
Gemmological Tables (2004) More from other references
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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