Geology of Mauritania ore. A Neoproterozoic carbonate unit, part of a synformal nappe overturned in the Paleozoic, now forms a major copper deposit 250 kilometers northeast of Nouakchott in the Mauritanides Belt. The one kilometer, 250 meter wide deposit spans the West and East Moghrein Guelb hills. Forty meters below the deposit is a secondary deposit of cuprite, azurite, malachite and tenorite, with an additional 2.25% copper, some gold and sulfide mineralization including cubanite, chalcopyrite, pyrrohitite and aresnopyrite. In the 2000s, mining at the site had mostly ceased except for gold mining in the tailings pile. Gypsum is extracted from the N'Drahamcha quarry,
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