peru vanadium rock ball mill, Vanadium in South Africa SAIMM May 5, 1 ... ore of the Bushveld Complex, and the production of vanadium from this ore ... Ragra was discovered in the Peruvian Andes in 1905, and, ..... blasting or mechanically by the use of a hydraulic rock ..... common ball mill plant. ... used gold ore dressing equipment for sale ...