1 Astrology
1.1 Origin
China, Burma, Pakistan, USA, Southern and central Africa, Brazil
Tanzania, Sri Lanka, China
1.2 Color
1.3 Streak
1.4 For which Rashi?
Libra, Taurus, Leo, Virgo, Libra, Taurus, Leo, Virgo, Libra, Taurus, Leo, Virgo
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1.5 Planet
1.6 Element of Planets
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
1.9 Deities
1.10 Not to wear with
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1.11 Powers
Protection, Wealth
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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
1.54-1.553.60-3.61
1
7.18
2.5 Fracture
2.6 Cleavage
Poor
Imperfect/fair/absent
2.7 Mohs Hardness
2.11 Chemical Composition
(Mg,Fe)2SiO4
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
3 Optical Properties
3.1 Luster
Vitreous, Greasy
Vitreous
3.2 Pleochroism
Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli
Weak
3.3 Dispersion
4.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
4.5 Refractive Index
1.64-1.691.70-1.73
1
3.25
4.8 Optic Character
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4.9 Crystal System
4.10 Birefringence
4.14 Clarity
Transparent
Color grading system
5 Benefits
5.1 Physical
5.1.1 Neurological
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5.1.2 Cardiovascular
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5.1.3 Respiratory
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5.1.4 Reproductive
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5.1.5 Digestive
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5.2 Psychology
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5.3 Healing
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5.4 Qualities Associated
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