1 Astrology
1.1 Origin
Southern and central Africa, violet, blue, violet, blue
Afghanistan, Australia, India, blue, green, blue, green
1.2 Color
Blue, Violet, Brown, White, Blue, Brown, Violet, Greenish, pink
Green, Blue, gray
1.3 Streak
1.4 For which Rashi?
Leo, Sagittarius, Leo, Sagittarius, Leo, Sagittarius
Sagittarius, Pisces, Aquarius, Sagittarius, Pisces, Aquarius, Sagittarius, Pisces, Aquarius
1.5 Planet
1.6 Element of Planets
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
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1.8 Energy
1.9 Deities
1.10 Not to wear with
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1.11 Powers
Healing
Protection, Courage, Love
1.12 Birthstone
1.12.1 Planetary
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1.12.2 Talisman
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2 Physical Properties
2.1 Tenacity
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2.2 Solubility
2.3 Durability
Not Available
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2.4 Specific Gravity
3.26-3.412.30-2.90
1
7.18
2.5 Fracture
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
2.6 Cleavage
Distinct on {100}, poor on {110}; parting on {001}
Good to perfect_usually N/A
2.7 Mohs Hardness
2.8 Chemical Composition
AlAl6O3BSi3O18
CuAl6(PO4)4(OH)8 • 4H2O
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
Weak
3.3 Dispersion
3.4 Transparency
Translucent, Translucent to opaque
Translucent, Opaque
3.5 Refractive Index
1.669-1.7231.610-1.650
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
3.9 Clarity
4 Benefits
4.1 Physical
4.1.1 Neurological
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4.1.2 Cardiovascular
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4.1.3 Respiratory
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4.1.4 Reproductive
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4.1.5 Digestive
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4.2 Psychology
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4.3 Healing
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4.4 Qualities Associated
Not Available
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