The dataset contains measurements of magnetic susceptibility in dependence of temperature of shocked magnetite and of a natural magnetite single crystal before and after manual crushing. A python code for evaluation of low-temperature susceptibility curves is included. The data are supplementary to: Fuchs, H., Kontny, A. and Schilling, F.R., 2024. Stress-induced Changes in Magnetite: Insights from a Numerical Analysis of the Verwey Transition, Geophysical Journal International