Llewellin, E. W., Wadsworth, F. B., Sullivan, P., Coumans, J. P., Dobson, K. J., Humphreys, M. C. S., Allabar, A., Gardner, J. E., Brooker, R. A., Nowak, M., Connolley, T., Havard, T., Allgood, C. (2026). Obsidian forms by slow cooling. Nature Communications. https://doi.org/10.1038/s41467-026-70110-1