1 Astrology
1.1 Origin
Mexico
Southern and central Africa
1.2 Color
Blue, Blue, Black
Brown, Reddish, pink, orange
1.3 Streak
Grey, Black, gray
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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
2.5 Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
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2.6 Cleavage
Perfect on {0001}
{???} Indistinct
2.7 Mohs Hardness
2.8 Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Mn2+9(SiO 4) 4(OH,F) 2Anthony et al , Handbook of mineralogy (2001)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
TransparentAnthony et al, Handbook of mineralogy (2001)
3.5 Refractive Index
1.45-2.621.763-1.793
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
Not AvailableNot Available
0
0.296
3.9 Clarity
OpaqueAnthony et al
TransparentAnthony et al
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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