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The reduced surface of a natural Hematite single crystal α-Fe₂O₃(0001) sample has multiple surface domains with different terminations, Fe₂O₃(0001), FeO(111), and Fe₃O₄(111). The adsorption of water on this surface was investigated via Scanning Tunneling Microscopy (STM) and first-principle theoretical simulations. Water species are observed only on the Fe-terminated Fe₃O₄(111) surface at temperatures up to 235 K. Between 235 and 245 K we observed a change in the surface species from intact water molecules and hydroxyl groups bound to the surface to only hydroxyl groups atop the surface terminating Fe^III cations. This indicates a low energy barrier for water dissociation on the surface of Fe₃O₄ that is supported by our theoretical computations. Our first principles simulations confirm the identity of the surface species proposed from the STM images, finding that the most stable state of a water molecule …