X-ray absorption spectroscopy and X-ray diffraction data for molybdenum minerals and compounds

We report Mo K-and LIII-edge X-ray absorption spectroscopy (XAS) and X-ray diffraction (XRD) data collected for 15 molybdenum minerals and compounds sourced from mu-seum collections, mineral dealers, and chemical suppliers. The samples were finely ground and analyzed at the Cana-dian Light Source synchrotron (Saskatoon, Canada). The LIII- edge XAS data were collected in fluorescence and total elec-tron yield mode, while the K-edge XAS data were collected in transmission and fluorescence modes. Molybdenum LIII- edge spectra cover the X-ray absorption near edge structure (XANES) region and Mo K-edge spectra cover the extended X-ray absorption fine structure (EXAFS) region. Tabulated XAS data are provided to support analysis of XAS data obtained for geological or environmental research. Furthermore, Mo K-edge EXAFS and LIII-edge XANES spectra, the k 3 weighted oscillatory chi(k) functions, and the Fourier-transforms in chi(R) of these K-edge data are presented graphically. Corre-sponding XRD data were collected as two-dimensional im-ages against an area detector and integrated to form line scans. The data were collected at a wavelength of 0.68866 A (18 keV) and is tabulated and presented graphically over a 0-40 degrees 2 0 range. This dataset is intended to be used as refer-ence material for a variety of rare and common Mo phases.(c) 2022 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)