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Pleonaste
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Nosean
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Gemstones
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Summary
Astrology
Physical Properties
Optical Properties
Benefits
All
Physical Properties
Tenacity
Solubility
Durability
Specific Gravity
Fracture
Cleavage
Mohs Hardness
Chemical Composition
-
-
-
3.80
-
Indistinct
8
(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
-
-
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2.30-2.40
Uneven, Conchoidal
{110} Perfect
-9999
Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)
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