Origin
Italy, China
Southern and central Africa
Color
Colorless, White, Blue, gray
Brown, Black, Blue
Streak
White
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For which Rashi?
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-
Planet
-
-
Element of Planets
-
-
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
-
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Durability
-
-
Specific Gravity
3.092.65
1
7.18
👆🏻
Fracture
Uneven
ConchoidalWalter Schumann
Cleavage
Perfect on {100} and {010}, imperfect on {101}
None
Mohs Hardness
8-9999
2
10
👆🏻
Chemical Composition
CaAl2Si2O7(OH)2.H2O
SiO 2Ulrich Henn and Claudio C.
Luster
Vitreous, Greasy
-
Pleochroism
Weak
Definite: brown reddish-brownWalter Schumann
Dispersion
0.010.01
0.005
1
👆🏻
Transparency
-
Transparent, Translucent
Refractive Index
1.672-1.6761.544-1.553
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
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Birefringence
0.019-0.0210.009
0
0.296
👆🏻
Clarity
-
Transparent
Physical
Neurological
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Improves digestion and metabolism
Cardiovascular
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Respiratory
Good
Good
Reproductive
-
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Digestive
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Psychology
-
Protection
Healing
Emotional healing
Emotional healing
Qualities Associated
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Protection