Sodium-type fluorophlogopite mica was synthesized by a new and simple method (all-in-one) that consists of mixing diatomite, MgO and NaF, grinding, firing and washing. The solid products were characterized by powder X-ray diffraction (XRD), Fourier transform infrared spectrometry (FT-IR) and scanning electron microscopy (SEM). The results showed that a major phase with lattice spacings of the fluorophlogopite mica (NaMg3AlSi3O10F2) formed was observed at d = 9.73 and d = 3.24 Å for a single sheet of an interlayer with an anhydrous phase obtained at 1000-1100 oC for 48-72 h. The peak intensity of the sodium-type fluorophlogopite mica became stronger with increasing temperature and time.

Keywords: Sodium-type fluorophlogopite, Mica, Perlite, Diatomite, Synthesis