Jurbanite is a sulfate mineral with the chemical formula Al. Its molecular weight is 230.13 g/mol. It crystallizes in the monoclinic mineral rostite Jurbanite occurs as a secondary (post-mine) mineral in mines containing sulfide minerals
Jurbanite was first described for an occurrence in the San Manuel mine of Pinal County and first described in 1976s. It was named for Joseph John Urban, the mineral collector who discovered it.