Schoepite, empirical formula (UO2)8O2(OH)12·12(H2O)[2] is a rare alteration product of uraninite in hydrothermal uranium deposits.

Although over 20 other crystal forms have been noted; rarely in microcrystalline aggregates.

When exposed to air schoepite converts over a short time to the metaschoepite form (UO3·nH2O, n < 2) within a few months of being exposed to ambient air.

It was first described from specimens from Shinkolobwe mine in Belgian Congo in 1923,[2] several additional localities are known.

Schoepite was named to honor Alfred Schoep (1881–1966), Professor of Mineralogy at the University of Ghent, Belgium.