Origin
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Southern and central Africa
Color
Blue, gray, Black
Brown, Colorless, Green
Streak
Blue
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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
-
-
Birthstone
Planetary
-
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Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3-3.153.14-3.25
1
7.18
👆🏻
Fracture
Conchoidal
-
Cleavage
Good on [110] and on [001]
Perfect
Mohs Hardness
6.0-6.56-7
2
10
👆🏻
Chemical Composition
[ ]Na2(Mg3Al2)Si8O22(OH)2
Al 2SiO 5Arthur Thomas , Gemstones (2009)
Luster
Vitreous, Pearly
-
Pleochroism
Strong
DistinctArthur Thomas
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
-
Transparent
Refractive Index
1.606-1.6371.658-1.678
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
-
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
-
Transparent
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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Aids in digestion and nutrient absorption
Psychology
Communication
Focus
Healing
Emotional healing
Emotional healing
Qualities Associated
Peace
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