1 Astrology
1.1 Origin
1.2 Color
Blue
Blue, Yellow, Brown, gray, Reddish, Greenish
1.3 Streak
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
Not Available
1.6 Element of Planets
Not Available
polyatomic nonmetal
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
Not Available
Not Available
1.9 Deities
Not Available
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1.10 Not to wear with
Not Available
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1.11 Powers
Not Available
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1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
Not Available
Not Available
2.2 Solubility
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.60-2.90Not Available
1
7.18
2.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
(e.g. graphite).
2.6 Cleavage
Not Available
{???} Imperfect, {???} Imperfect
2.7 Mohs Hardness
2.8 Chemical Composition
Be 3Al 2Si 6O 18Ulrich Henn and Claudio C.
Not Available
3 Optical Properties
3.1 Luster
Not Available
Not Available
3.2 Pleochroism
Strong dichroism: blue to colourless\
Not Available
3.3 Dispersion
3.4 Transparency
Transparent
Not Available
3.5 Refractive Index
1.560-1.604Not Available
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
Not Available
Orthorhombic
3.8 Birefringence
0.003-0.010Not Available
0
0.296
3.9 Clarity
Transparent
Not Available
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
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4.1.2 Cardiovascular
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4.1.3 Respiratory
Not Available
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4.1.4 Reproductive
Not Available
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4.1.5 Digestive
Not Available
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4.2 Psychology
Not Available
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4.3 Healing
Not Available
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4.4 Qualities Associated
Not Available
Not Available