Research data for Temperature-Dependent Fe(II) Thresholds for Magnetite Formation during Fe(II)-catalyzed Ferrihydrite Transformation

This dataset contains the numerical research data underlying the main-text and Supporting Information figures of the associated manuscript, “Temperature-Dependent Fe(II) Thresholds for Magnetite Formation during Fe(II)-Catalyzed Ferrihydrite Transformation.” The dataset includes Fe K-edge XAS normalized spectra and EXAFS k-space fitting data, ATR-FTIR spectra, synchrotron and powder XRD data, reference diffraction data, and magnetic measurements including FC/ZFC warming curves, hysteresis loops, FORC-related data, and backfield remanence data. Numerical plotting data are provided primarily in text-based formats, with accompanying Excel files for convenient inspection and data organization. The folder structure identifies the corresponding figures and analytical datasets.