bismuthite
noun
bis·muth·ite
ˈbizməˌthīt,
ˈbism-,
-ˌt͟hīt
plural -s
: a nitrate of bismuth: such as
a
: the normal nitrate Bi(NO3)3.5H2O obtained as colorless lustrous hygroscopic crystals by the action of nitric acid on bismuth and used chiefly in making other bismuth compounds
b
: bismuth subnitrate
Word History
Etymology
German bismutit, bismut bismuth + -it -ite