1 Astrology
1.2 Origin
the type locality
Southern and central Africa
1.3 Color
Blue, Green
Violet, Blue, Yellow, Brown, White, Colorless
1.5 Streak
1.7 For which Rashi?
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1.9 Planet
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1.11 Element of Planets
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1.13 How to Wear?
1.14.0 Finger
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1.14.2 Ring Metal
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1.15 Energy
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1.17 Deities
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1.19 Not to wear with
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1.22 Powers
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1.24 Birthstone
1.24.1 Planetary
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1.24.3 Talisman
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3 Physical Properties
3.1 Tenacity
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3.3 Solubility
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3.5 Durability
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3.7 Specific Gravity
3.9 Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
3.11 Cleavage
perfect along [010] and [100]
Indistinct
3.13 Mohs Hardness
3.14 Chemical Composition
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)
4 Optical Properties
4.1 Luster
5.2 Pleochroism
X = very pale blue; Y = pale blue; Z = deep blue
Weak to strong if coloreD
5.4 Dispersion
5.6 Transparency
5.7 Refractive Index
1.752-1.8151.631-1.650
1
3.25
5.10 Optic Character
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5.11 Crystal System
5.12 Birefringence
0.063Not Available
0
0.296
5.16 Clarity
6 Benefits
6.1 Physical
6.1.1 Neurological
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6.1.2 Cardiovascular
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7.1.2 Respiratory
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7.1.4 Reproductive
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7.1.6 Digestive
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7.2 Psychology
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7.3 Healing
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7.5 Qualities Associated
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