1 Astrology
1.1 Origin
Australia
Southern and central Africa, violet, blue, violet, blue
1.2 Color
Brown, Brown, Reddish, Brownish, Yellow, Brown, Reddish, Brownish, Yellow
Blue, Violet, Brown, White, Blue, Brown, Violet, Greenish, pink
1.3 Streak
Brown, Brownish, Yellow
White
1.4 For which Rashi?
Not Available
Leo, Sagittarius, Leo, Sagittarius, Leo, Sagittarius
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
Not Available
1.8 Energy
1.9 Deities
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
1.12.2 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
Not Available
Not Available
2.2 Solubility
HCl soluble
Not Available
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
4.27-4.293.26-3.41
1
7.18
2.5 Fracture
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
2.6 Cleavage
Perfect {010}
Distinct on {100}, poor on {110}; parting on {001}
2.7 Mohs Hardness
2.8 Chemical Composition
FeO(OH)Arthur Thomas , Gemstones (2009)
AlAl6O3BSi3O18
3 Optical Properties
3.1 Luster
3.2 Pleochroism
VisibleArthur Thomas
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
3.3 Dispersion
3.4 Transparency
Gemstones (2009)
Translucent, Translucent to opaque
3.5 Refractive Index
2.26-2.3981.669-1.723
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
Orthorhombic
Orthorhombic
3.8 Birefringence
3.9 Clarity
Gemstones (2009)
Translucent
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
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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