1 Astrology
1.1 Origin
Southern and central Africa
Canada, Pakistan
1.2 Color
Black, Blue, Violet
Reddish, Greenish, White, Red, Yellow, Green, Grey, Blue, Brown, Colorless, White, gray, Reddish, orange
1.3 Streak
1.4 For which Rashi?
Not Available
Virgo, Capricorn, Virgo, Capricorn, Virgo, Capricorn
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
Not Available
Projective, Receptive
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
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1.12.2 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
2.2 Solubility
Not Available
Dilute acid
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.95-3.132.93-2.96
1
7.18
2.5 Fracture
Not Available
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
2.6 Cleavage
{210} Perfect
Distinct on {010}, imperfect {110} and {011}
2.7 Mohs Hardness
2.8 Chemical Composition
Li 2[(Mg,Fe2+ ) 3Al 2]Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
Vitreous
Vitreous, Resinous
3.2 Pleochroism
Strong in shades of violet when dark-colored.Anthony et al
StrongArthur Thomas
3.3 Dispersion
3.4 Transparency
Transparent
Transparent, Translucent
3.5 Refractive Index
1.622-1.6661.525-1.686
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Orthorhombic
3.8 Birefringence
Not Available0.155
0
0.296
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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