Data for "Simulation of natural alteration of iron oxides in soil: conversion of synthetic ferrihydrite to hematite without artificial dopants, observed with magnetic methods" collected at the University of Minnesota between 2016 and 2020

Magnetic, pXRD and Mössbauer metadata used in the cited study on alteration of synthetic ferrihydrite. All magnetic data was collected at the Institute for Rock Magnetism on a Quantum Design MPMS and comprises magnetic susceptibility (in-phase and out-of-phase) as a function of temperature (10-300K) and frequency (1-1000 Hz), hysteresis loops measured at 5K and 300 K, and magnetic remanence data (pTRM, temperature and AF demagnetized, the "goethetite test") collected between 400 and 10 K.