Origin
Italy, Canada
Southern and central Africa
Color
Blue, Red, Yellow, Colorless, Green, White
Colorless, Yellow
Streak
White
White
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
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.90-3.102.59-2.60
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
-
Cleavage
Poor/indistinct on {1120} and {1011}
{001} Perfect, {110} Distinct, {101} Distinct
Mohs Hardness
76-7
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
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous
Vitreous
Pleochroism
Pale green
none.
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
Transparent
TransparentAnthony et al
Refractive Index
1.614-1.6661.583-1.614
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21
Birefringence
0.014-0.032-9999
0
0.296
👆🏻
Clarity
Transparent
TransparentAnthony et al
Physical
Neurological
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Cardiovascular
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Promotes mental clarity
Respiratory
-
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Reproductive
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Digestive
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Psychology
Emotional healing
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
Emotional Healing
Creativity