1 Astrology
1.1 Origin
Canada, Russia, Kenya, Russia, Brazil, Russia, Brazil, Russia, Brazil, Russia, Brazil, Russia, Brazil, Russia, Brazil, Russia, Norway, Brazil
Southern and central Africa
1.2 Color
Green, Greenish, Black, Green, Greenish, Black, Green, Greenish, Black, Reddish, Brown, Black, Green, Greenish, Black, Reddish, Brown, Black, Green, Greenish, Black, Reddish, Brown, Black
Greenish, Yellow, White
1.3 Streak
Yellow, Yellowish-grey, gray
Not Available
1.4 For which Rashi?
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
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
2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
3.50-3.603.17-3.18
1
7.18
2.5 Fracture
Uneven, Brittle, Metallic, Brittle, Metallic, Brittle, Metallic
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2.6 Cleavage
Good on {110}, (110) ^ (1 1 0) ≈87°; parting on {100}
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2.7 Mohs Hardness
2.8 Chemical Composition
(Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.
Ca 5(PO 4) 3ClAnthony et al , Handbook of mineralogy (2001)
3 Optical Properties
3.1 Luster
Vitreous, Resinous
Not Available
3.2 Pleochroism
X = emerald green
Weak to moderate; in pale colors.Anthony et al
3.3 Dispersion
3.4 Transparency
Gemmological Tables (2004) More from other references
Transparent
3.5 Refractive Index
1.720-1.7781.665-1.667
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
0.037-0.061Not Available
0
0.296
3.9 Clarity
Gemmological Tables (2004) More from other references
Transparent
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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