Origin
Southern and central Africa
Italy, China
Color
Blue, Grey
Colorless, White, Blue, gray
Streak
-
White
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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Brittle
Solubility
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-
Durability
-
-
Specific Gravity
2.58-2.643.09
1
7.18
👆🏻
Fracture
-
Uneven
Cleavage
-
Perfect on {100} and {010}, imperfect on {101}
Mohs Hardness
78
2
10
👆🏻
Chemical Composition
SiO 2Walter Schumann , Gemstones of the world (2001)
CaAl2Si2O7(OH)2.H2O
Luster
-
Vitreous, Greasy
Pleochroism
-
Weak
Dispersion
0.050.01
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.534-1.5401.672-1.676
1
3.25
👆🏻
Optic Character
-
-
Crystal System
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Orthorhombic
Birefringence
-99990.019-0.021
0
0.296
👆🏻
Clarity
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-
Physical
Neurological
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Cardiovascular
Aids in digestion and soothes the stomach
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Respiratory
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Good
Reproductive
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Digestive
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Psychology
Protection
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Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
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