Origin
Southern and central Africa
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Color
Yellow, Blue, Black, Green, gray
Blue, Green
Streak
White
Blue
For which Rashi?
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Planet
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-
Element of Planets
-
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Energy
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How to Wear?
Finger
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Ring Metal
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Deities
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Not to wear with
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Powers
-
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Birthstone
Planetary
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Talisman
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Tenacity
-
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Solubility
-
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Durability
-
-
Specific Gravity
3.43-3.443.80-4.15
1
7.18
👆🏻
Fracture
-
Uneven
Cleavage
None Observed
perfect along [010] and [100]
Mohs Hardness
6.5-73.5-4
2
10
👆🏻
Chemical Composition
Ca 2(Mg,Al) 6(Si,Al,B) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Silky
Pleochroism
visible
X = very pale blue; Y = pale blue; Z = deep blue
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
-
Translucent
Refractive Index
1.696-1.7021.752-1.815
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Triclinic
Orthorhombic
Birefringence
0.0050.063
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent
Physical
Neurological
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Cardiovascular
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Respiratory
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Good
Reproductive
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Digestive
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Psychology
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Communication
Healing
Emotional healing
Emotional healing
Qualities Associated
Transformation
Communication