Astrology
Origin
Southern and central Africa
Afghanistan, Southern and central Africa
Color
Colorless, White
Blue, Greenish, Violet
Streak
White
Blue, White
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
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Energy
Not Available
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How to Wear?
Finger
Not Available
Not Available
Ring Metal
Not Available
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Deities
Not Available
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Not to wear with
Not Available
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Powers
Not Available
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Birthstone
Planetary
Not Available
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Talisman
Not Available
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Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.91
2.75
Fracture
Handbook of mineralogy (2001)
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
None
Imperfect on {110}
Mohs Hardness
Not Available
5.5
Chemical Composition
(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Optical Properties
Luster
Vitreous
Vitreous
Pleochroism
Weak: colorless light gray bluish grayAnthony et al
Not Available
Dispersion
Not Available
Not Available
Transparency
Transparent
Gemmological Tables (2004) More from other references
Refractive Index
1.634-1.656
1.500
Optic Character
Not Available
Not Available
Crystal System
Not Available
Isometric
Birefringence
Not Available
Not Available
Clarity
Transparent
Gemmological Tables (2004) More from other references
Benefits
Physical
Neurological
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Cardiovascular
Not Available
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Respiratory
Not Available
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
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Qualities Associated
Not Available
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