Physical-chemical composition of the Nigneuvelyskaya's clay
Physical-Chemical composition of the Nigneuvelyskaya's clay was characterized by physical-chemistry methods (XRD, DTA, MS atomic emission methods). It was investigated that the Nigneuvelyskaya's clay could be classified as semiacid argillous raw material. It was found the empiric formula of the Nigneuvelyskaya's clay.