1 Astrology
1.1 Origin
the type locality
Canada, Russia
1.2 Color
Blue, Green
Brown, Yellow, Greenish, Brown, Yellow, Greenish, Brown, Brownish, Red, Yellow
1.3 Streak
Blue
Brown, White, 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
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2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
Uneven, Brittle, Metallic
2.6 Cleavage
perfect along [010] and [100]
Perfect on [001] imperfect on [100]
2.7 Mohs Hardness
2.8 Chemical Composition
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
X = very pale blue; Y = pale blue; Z = deep blue
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
1.752-1.8151.678-1.758
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
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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