Thermal Annealing and Phase Transformation of Serpentine-Like Garnierite

This study is focused on the vibrational and microstructural aspects of thermally induced transformation serpentine-like garnierite into quartz, forsterite, enstatite occurring at about 620 °C. Powder specimens were annealed in static air between room temperature 1000 The kinetic was investigated by means thermogravimetric differential thermal analysis, final product extensively characterized via micro-Raman spectroscopy X-ray diffraction. Our shows that consists a mixture different mineral species. Furthermore, these garnierites their composition can provide details based mineralogy crystalline phases resulting from treatment.