Origin
Southern and central Africa
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Color
Blue, Grey
Blue, White, Grey, Yellow, Green, Colorless, Red, gray
Streak
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Blue, 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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Gelatinises in acids
Durability
-
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Specific Gravity
2.58-2.642.4-2.5
1
7.18
👆🏻
Fracture
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Uneven, Conchoidal
Cleavage
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Distinct on {110}
Mohs Hardness
75-6
2
10
👆🏻
Chemical Composition
SiO 2Walter Schumann , Gemstones of the world (2001)
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Luster
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Vitreous, Greasy
Pleochroism
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None
Dispersion
0.050.01
0.005
1
👆🏻
Transparency
-
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Refractive Index
1.534-1.5401.50
1
3.25
👆🏻
Optic Character
-
-
Crystal System
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Isometric
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
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Physical
Neurological
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Enhances mental clarity and focus
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
Communication
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Communication