1 Astrology
1.1 Origin
Canada, Southern and central Africa
Southern and central Africa
1.2 Color
Green, Green, Yellow, Red
Colorless, Green, Yellow, White, Colorless, Green, Yellow, White
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
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2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
3.28-3.323.23-3.26
1
7.18
2.5 Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
2.6 Cleavage
{101} Distinct
Perfect on {010} imperfect on {100}
2.7 Mohs Hardness
2.8 Chemical Composition
ThCa 2Si 8O 20Walter Schumann , Gemstones of the world (2001) More from other references
Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
1.593-1.5961.635-1.671
1
3.25
3.6 Optic Character
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3.7 Crystal System
Tetragonal Trapezohedral H-M Symbol (4 2 2) Space Group: I 422
Orthorhombic
3.8 Birefringence
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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