1 Astrology
1.1 Origin
Not Available
Southern and central Africa
1.2 Color
Black, Blue, Yellow, Green
Yellow, Brown, Black, Black
1.3 Streak
Grey, Greenish, Brown
White
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, Splintery, Brittle
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
1.14 Cleavage
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
{010} moderate, {100} imperfect
1.15 Mohs Hardness
1.16 Chemical Composition
Not Available
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
2 Optical Properties
2.1 Luster
Vitreous, Silky
Vitreous, Resinous
2.2 Pleochroism
2.3 Dispersion
2.4 Transparency
Not Available
TransparentAnthony et al, Handbook of mineralogy (2001)
2.5 Refractive Index
1.680-1.6981.827-1.879
1
3.25
2.6 Optic Character
Not Available
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2.7 Crystal System
2.8 Birefringence
0.005-0.0080.042-0.051
0
0.296
2.9 Clarity
Not Available
TransparentAnthony et al
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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