Origin
Brazil
Southern and central Africa
Color
Blue
Colorless, Yellow
Streak
-
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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Solubility
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Durability
-
-
Specific Gravity
2.60-2.902.59-2.60
1
7.18
👆🏻
Fracture
Conchoidal
-
Cleavage
Indistinct
{001} Perfect, {110} Distinct, {101} Distinct
Mohs Hardness
7.5-86-7
2
10
👆🏻
Chemical Composition
Be 3Al 2Si 6O 18Ulrich Henn and Claudio C.
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Luster
-
Vitreous
Pleochroism
Strong dichroism: blue to colourless\
none.
Dispersion
0.010.01
0.005
1
👆🏻
Transparency
Transparent
TransparentAnthony et al
Refractive Index
1.560-1.6041.583-1.614
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21
Birefringence
0.003-0.010-9999
0
0.296
👆🏻
Clarity
Transparent
TransparentAnthony et al
Physical
Neurological
Enhances mental clarity and focus
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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
Communication
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Creativity