Critical Rare Earths, National Security, And Us-China
figure 4.4 global dysprosium oxide deposits and their ore grade ranges rare earths are identified as a key r&d focus in the outline of ,the mineral industries of cambodia and laos in 2001,2001). laos. laos' mineral resources were barite, coal, copper, gemstones, gold, gypsum, iron ore, lead, silver, tin, and zinc. on the basis.