Study of the material properties of micaceous vermiculite minerals of the Tebinbulak deposit

Studies are performed on the material composition of micaceous minerals of the vermiculite series in the Tebinbulak deposit. It is established that the micaceous materials studied consist of Mg-biotite, Mg-, Na-and Ca-hydrobiotite, and the chemical formula for the minerals is worked out. Results of the studies are of considerable practical value for developing the technology for preparing expanded vermiculite and preparing various materials based upon it. __________ Translated from Novye Ogneupory, No. 10, pp. 57–62, October 2007.