Niles, Harlan B2015-10-072017-04-142015-10-072017-04-142001https://hdl.handle.net/11299/187126The Minerals Division of the Minnesota Department of Natural Resources (DNR) is examining leaching characteristics of minerals that would likely be present in tailing produced by mining and concentrating copper- and nickel sulfide-bearing ores from the Duluth Complex. The Coleraine Minerals Research Laboratory (CMRL) of the Natural Resources Research Institute submitted a project proposal to provide concentrates of silicate minerals for DNR leaching studies. The DNR accepted the proposal and funded the project for $14,210.enLeachingTailingsCopper sulfidesMining wasteNatural Resources Research InstituteUniversity of Minnesota DuluthTechnical Report