1 Astrology
1.1 Origin
Mexico
Southern and central Africa, Burma, Tanzania, India, Sri Lanka
1.2 Color
Blue, Blue, Black
Yellow, White, Green, Brown, Greenish, gray
1.3 Streak
Grey, Black, gray
Grey, gray
1.4 For which Rashi?
Not Available
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1.5 Planet
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1.6 Element of Planets
Not Available
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1.7 How to Wear?
1.7.1 Finger
Not Available
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1.7.2 Ring Metal
Not Available
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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
2.5 Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic
2.6 Cleavage
Perfect on {0001}
Good/distinct on [210]
2.7 Mohs Hardness
2.8 Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Mg 2Si 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
Resinous
Vitreous, Pearly
3.2 Pleochroism
Marked
Pale green to pale orange
3.3 Dispersion
3.4 Transparency
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Transparent, Translucent
3.5 Refractive Index
1.45-2.621.650-1.680
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
Not Available0.009-0.011
0
0.296
3.9 Clarity
OpaqueAnthony et al
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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