dumontite

noun

du·​mont·​ite

ˈd(y)üˌmänt‧ˌīt

plural -s

: a hydrated phosphate Pb₂(UO₂)₃(PO₄)₂(OH)₄.3H₂O of uranium and lead occurring in yellow orthorhombic crystals

Word History

Etymology

French dumontite, from André Dumont †1857 Belgian geologist + French -ite

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