опыты измельчения на шаровом мельнице минерала
Mineralogical and technological investigations of low-grade serpentinite copper-nickel ores, the Pechenga ore body. The paper presents the investigation results of the material and mineral composition of a new type of sulphide copper-nickel mineralization in the Pechenga ore field represented by lean finely disseminated ores in serpentinized peridotites.