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