1 Astrology
1.1 Origin
Australia, Southern and central Africa
Italy
1.2 Color
Violet, pink
Green, Green, gray, Brown, Black
1.3 Streak
White, Violet, Blue
Greenish, White, Greenish, 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
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2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
2.11-2.202.58-2.80
1
7.18
2.5 Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven
Conchoidal, Brittle, Metallic, Conchoidal, Handbook of mineralogy (2001)
2.6 Cleavage
Perfect on {0001}
{001} Good
2.7 Mohs Hardness
2.8 Chemical Composition
Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
3 Optical Properties
3.1 Luster
Waxy, Resinous
Waxy, Silky, Resinous, Greasy
3.2 Pleochroism
Weak
pale greenish yellow.
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
1.516-1.5441.530-1.575
1
3.25
3.6 Optic Character
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3.7 Crystal System
Trigonal
Monoclinic Domatic H-M Symbol (m) Space Group: Cm
3.8 Birefringence
0.026Not Available
0
0.296
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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