TY JOUR TI STUDY OF MINERALOGICAL COMPOSITION OF DIATOMITE FOR ITS SAFE MINING AND INDUSTRIAL USAGE KW diatomite KW mineralogical composition KW crystalline silica KW hygienic standards JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Ubas'kina, Y.. AU Arsent'ev, I.. AU Fetyuhina, E.. AU Korosteleva, Y.A. AU Adaev, T.V. PY 2016 IS 1 PB Belgorod State Technological University named after V.G. Shukhov