Iron oxide copper gold ore deposits to be within Neoproterozoic to Mesoproterozoic basement. Worldwide, ages of recognised IOCG deposits range from 1.8 Ga to 15 Ma, however, the majority are within the 1.6 Ga to 850 Ma range. Ore minerals in IOCG deposits are typically copper-iron sulfide chalcopyrite and gangue pyrite, forming 10–15% of the rock mass. Supergene profiles can be developed above weathered examples of IOCG deposits, as exemplified by the Sossego deposit, Para State, Brazil, where typical oxidised copper minerals are present, e.g.; malachite, cuprite, native copper and minor amounts of digenite and chalcocite. Alteration is a mixture of sodic-calcic (albite-epidote) to potassic (K-feldspar)
Ore Valley Clifton Road Methodist church and a Salvation Army unit. In the part of Ore known as St Helens stands a second Anglican church dedicated to St Helen. The church was built in 1868, and its predecessor, an ancient church dating from the reign of Edward III, now stands in ruins nearby. Hastings Cemetery is in the St Helens area of Ore. Ore Valley has the Ore Valley Campus of Sussex Coast College Hastings on Parker Road. Hastings Academy is in the nearby Red Lake district of Ore. Primary schools: Secondary schools: Ore Valley Ore, a former village, is still known