Origin
Afghanistan, Southern and central Africa
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
Color
Grey, White, Colorless, gray, Pale pink, Blue
Blue, Violet, Greenish, Brown, Colorless, Yellow, gray
Streak
White
White
For which Rashi?
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Planet
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Element of Planets
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Energy
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How to Wear?
Finger
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Ring Metal
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Deities
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Not to wear with
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Powers
-
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Birthstone
Planetary
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Talisman
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Tenacity
Brittle
Brittle
Solubility
Readily soluble in HF
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Durability
-
-
Specific Gravity
2.86-2.942.57-2.66
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Subconchoidal, Conchoidal
Cleavage
None observed
Fair on {100}, poor on {001} and {010}
Mohs Hardness
6.5-77-7.5
2
10
👆🏻
Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Mg2Al4Si5O18