zippeite

Etymology
F X M Zippe, Prague mineralogist, and -ite.

Noun

 * 1)  A hydrous potassium uranium sulfate mineral with chemical formula K4(UO2)6(SO4)3(OH)10·4(H2O), forming yellow to reddish-brown monoclinic-prismatic crystals with perfect cleavage and formerly used in the manufacture of paint.