1 Astrology
1.1 Origin
Canada
Southern and central Africa, violet, blue, violet, blue
1.2 Color
Yellow, Reddish, Brown, Brownish, Green, gray, Colorless
Blue, Violet, Brown, White, Blue, Brown, Violet, Greenish, pink
1.3 Streak
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
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1.8 Energy
1.9 Deities
1.10 Not to wear with
Not Available
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1.11 Powers
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
2.2 Solubility
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
2.72-2.833.26-3.41
1
7.18
2.5 Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
2.6 Cleavage
Good on {100} and {110}
Distinct on {100}, poor on {110}; parting on {001}
2.7 Mohs Hardness
2.8 Chemical Composition
Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.
AlAl6O3BSi3O18
3 Optical Properties
3.1 Luster
Vitreous, Pearly
Vitreous
3.2 Pleochroism
Weak; O = colorless to yellow; E = colorless to honey-yellow
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
Transparent, Translucent
Translucent, Translucent to opaque
3.5 Refractive Index
1.610-1.6471.669-1.723
1
3.25
3.6 Optic Character
Not Available
Not Available
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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