TY JOUR TI Features of mass-operational characteristic of magnetic control of ferroimpurities in feldspar KW polyoperational magnetic control KW mass of ferroimpurities KW fracture of mass-operational characteristics JO Technique and technology of silicates AU Sandulyak, A.A. AU Sandulyak, A.V. AU Ershova, V.A. AU Snedkov, A.B. AU Sandulyak, D.A. PY 2014 IS 21 PB Individual Entrepreneur Svetlana Vasilievna Samchenko