1 Astrology
1.1 Origin
the type locality
Southern and central Africa
1.2 Color
Blue, Green
Colorless, White, gray, Brown, pink
1.3 Streak
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
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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
Not Available
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1.9 Deities
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1.10 Not to wear with
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1.11 Powers
Not Available
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1.12 Birthstone
1.12.1 Planetary
Not Available
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1.12.2 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
Not Available
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2.2 Solubility
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
3.80-4.153.05-3.08
1
7.18
2.5 Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
Uneven, Uneven, Irregular, Management Team (2012), Conchoidal, Brittle
2.6 Cleavage
perfect along [010] and [100]
None
2.7 Mohs Hardness
2.8 Chemical Composition
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony 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
Not Available
3.3 Dispersion
3.4 Transparency
Translucent
Semitransparent
3.5 Refractive Index
1.752-1.815Not Available
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
Orthorhombic
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: I a3d
3.8 Birefringence
0.063Not Available
0
0.296
3.9 Clarity
Translucent
TranslucentAnthony 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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