Wattevilleite

noun

Watte·​ville·​ite

ˈwätviˌlīt

plural -s

: a mineral Na₂Ca(SO₄)₂.4H₂O(?) that is a hydrous sulfate of sodium and calcium and occurs as aggregates of minute hairlike crystals

Word History

Etymology

German wattevillit, from Baron Oscananar de Watteville, 19th century Frenchman + German -it -ite

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