The Mineral Industry of Guinea in 2011 USGS Mineral Resources .
Guinea2011. 21.1. THE MINERAL INDUSTRY OF GUINEA. By Omayra Bermúdez Lugo. Guinea's mineral sector accounted for more than 25% of the country's gross . graphite, iron ore, limestone, manganese, nickel, and uranium. (World Trade . the import tax for mining supplies, machinery, and equipment to 8% from.get price