Origin
Italy, Canada
Southern and central Africa
Color
Blue, Red, Yellow, Colorless, Green, White
Brown, Red, Blue, Yellow, orange
Streak
White
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For which Rashi?
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Planet
-
-
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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Solubility
-
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Durability
-
-
Specific Gravity
2.90-3.102.60-2.64
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Uneven, Splintery, Conchoidal
Cleavage
Poor/indistinct on {1120} and {1011}
Absent
Mohs Hardness
76.5-7
2
10
👆🏻
Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
SiO 2Arthur Thomas , Gemstones (2009)
Luster
Vitreous
Waxy, Vitreous, Greasy, Silky
Pleochroism
Pale green
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Dispersion
0.020.01
0.005
1
👆🏻
Transparency
Transparent
Translucent
Refractive Index
1.614-1.6661.530-1.543
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal
Trigonal
Birefringence
0.014-0.0320.003-0.009
0
0.296
👆🏻
Clarity
Transparent
Translucent
Physical
Neurological
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Enhances mental clarity and focus
Cardiovascular
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Aids in digestion and nutrient absorption
Respiratory
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Good
Reproductive
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Digestive
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Psychology
Emotional healing
Protection
Healing
Emotional healing
Emotional healing
Qualities Associated
Emotional Healing
Protection