Masuyite is a uranium/lead oxide mineral with formula Pb[(UO2)3O3(OH)2]·3H2O. Masuyite was first described in 1947 for an occurrence in Katanga and named to honor Belgian geologist Gustave Masuy (1905–1945). ... Found on http://en.wikipedia.org/wiki/Masuyite
1) Oxide mineral 2) Uranium mineral 
Masuyite is a uranium/lead oxide mineral with formula Pb[(UO2)3O3(OH)2]·3H2O. Masuyite was first described in 1947 for an occurrence in Katanga and named to honor Belgian geologist Gustave Masuy (1905–1945). ...