Astrology
Origin
Russia, Canada, Australia, India, Brazil
Kenya, Southern and central Africa
Color
Red, Violet, Blue, Green, Grey
Green, Brown, Yellow, Red
Streak
Not Available
Not Available
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
Not Available
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Ring Metal
Not Available
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Deities
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Not to wear with
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Powers
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Birthstone
Planetary
Not Available
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Talisman
Not Available
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Physical Properties
Tenacity
Not Available
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Solubility
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Durability
Not Available
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Specific Gravity
Not Available
3.55-3.70
Fracture
Not Available
Gemstones (2009)
Cleavage
Not Available
Not Available
Mohs Hardness
10
4-7
Chemical Composition
Not Available
Al 2SiO 5Arthur Thomas , Gemstones (2009) More from other references
Optical Properties
Luster
Not Available
Vitreous
Pleochroism
Not Available
Blue stones strong trichroism: colorless/pale blue (greenish or violet)-blue dark blueHerve Nicolas Lazzarelli
Dispersion
Not Available
0.02
18
Transparency
Not Available
Transparent
Refractive Index
2.42
1.710-1.735
Optic Character
Not Available
Biaxial/+
Crystal System
cubic
Not Available
Birefringence
Not Available
0.012-0.033
Clarity
Color grading system
Transparent
Benefits
Physical
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
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Healing
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Qualities Associated
Not Available
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