Talc schist deposits are reported in central Cameroon region, and different alteration zones were determined depending on differences related to the texture color of host rock. For purpose determining mineralogical physicochemical characteristics talc schist, a total 45 samples from sites studied collected analyzed using an array physico-chemical methods. mainly composed variable amount associa...

Several medieval tiles from Tiebas Castle in Navarre, classified as carreaux de pavement, were mineralogically analyzed. The aim was to add information the very scarce analytical data available for pavement order provide a quality primary work, mainly descriptive, this topic. characterization techniques applied were: optical microscopy (OM), colorimetry, Fourier transform infrared (FT-IR) spect...

The present study proposes a characterization of textural and mineralogical features branching selenite gypsum lithofacies from the Monferrato area (NW Italy). This facies is considered to have appeared during sequence primary lower Messinian Salinity Crisis starting sixth stratigraphical cycle, providing useful tool for stratigraphic correlation throughout Mediterranean. It often associated wi...

The Guangxi Zhuang Autonomous Region is an important manganese ore district in Southwest China, with resource reserves accounting for 23% of the total China. Xialei deposit (Daxin County, Guangxi) first super-large discovered Mn oxide supergene oxidation zone was characterized using scanning electron microscopy (SEM), energy spectrometer (EDS), transmission (TEM, HRTEM), and X-ray diffraction a...

The catchment (bedrock and soil) sediments of lake Bol?t?u, Romania were studied by high resolution multi-methodological investigations to characterize paleoenvironmental formation conditions. Particle size analyses, optical cathodoluminescence microscopy, FTIR-ATR Raman spectroscopy, X-ray powder diffraction, XRF applied for microtextural, chemical, micro-mineralogical embedded organic materia...