· Conventional openpit mining, including drilling and blasting followed by loading and hauling, will be used at the Gamsberg mine. The mined ore will be transported by haul trucks to the primary crusher loed adjacent to the open pit.. The crushed ore will be stockpiled before conveying through a reclaim conveyor to the milling circuit that will consist of a semiautogenous .
blackmountain mine ball mill . blackmountain mine ball mill pthe process of black mountain treats ore from the broken hills having the second milling stage is a ball mill and a hydrocyclone cluster in closed circuitthe mineral processing facility at the lisheen mine operates 24 hours a day seven .