Behavior of Decarbonation in FeCO3 Single-Crystals by High-Temperature X-Ray Diffraction

Abstract

The structural evolution of FeCO3 (siderite) at high temperatures has been investigated by the single-crystal X-ray diffraction technique. Decarbonation of siderite occurred with increasing temperature, resulting in the formation of iron oxide crystals, -Fe2O3 (hematite) and Fe3O4 (magnetite). Both iron oxide crystals were found to have the topotaxial orientation relation to the siderite mother crystal.