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Additional
thenardite
English Wikipedia - The Free Encyclopedia
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Thenardite
Thenardite
is an anhydrous
sodium sulfate
mineral, Na
2
SO
4
which occurs in arid
evaporite
environments. It also occurs in dry
caves
and old
mine
workings as an efflorescence and as a crusty
sublimate
deposit around
fumaroles
. It occurs in
volcanic
caves on
Mt. Etna
,
Italy
. It was first described in 1825 for an occurrence in the Espartinas Saltworks,
Ciempozuelos
,
Madrid
,
Spain
and was named for the French chemist,
Louis Jacques Thénard
(1777–1826).
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