Origin
Italy, China
Southern and central Africa
Color
Colorless, White, Blue, gray
Greenish, Blue, Colorless, Green, Yellow
Streak
White
Greenish, gray
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
Brittle
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Solubility
-
-
Durability
-
-
Specific Gravity
3.093.17-3.24
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
Perfect on {100} and {010}, imperfect on {101}
(0001) indistinct
Mohs Hardness
89-9.5
2
10
👆🏻
Chemical Composition
CaAl2Si2O7(OH)2.H2O
SiCArthur Thomas , Gemstones (2009)
Luster
Vitreous, Greasy
Adamantine
Pleochroism
Weak
-
Dispersion
0.010.10
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.672-1.6762.648-2.691
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
6H polytype
Birefringence
0.019-0.0210.043
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
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Cardiovascular
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Respiratory
Good
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Reproductive
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Digestive
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Psychology
-
Clarity
Healing
Emotional healing
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Qualities Associated
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Creativity