the carmelita mines and mill is a remote gold mining property located in the harquahala mo . gold, platinum, silver. arizona, usa. kasaan project. former producing salt chuck mine alaska, usa was the largest producer of palladium in the united states. the former producing salt chuck mine is contained wholly within the kasaan project area.,platinum mining mining of platinum platinum platinum,description platinum, is a heavy, malleable,ductile, highly inactive, silverish-white transition metal. platinum is a member of group 10 elements of the periodic table.it is one among the scarce elements found in earths crust and has six naturally occurring isotopes.