Figure . Overview of STXM, spectro-ptychography, and STEM (EDXS and HAADF) results obtained from the same S1 sample region, along with DFT calculations. Speciation maps obtained from STXM hyperspectral data (a), spectroptychography (b), elemental mapping from EDXS (c), and the corresponding HAADF image (d). Circular overlays were used in the images matching the support hole size (2 µm) to keep only the signal from the unsupported sample part (details in text and Supporting Information). The yellow arrows are guide to eyes pointing to the same particular position on the sample; e) Ti L2,3 edge NEXAFS spectra of the surface Fe2TiO5 clusters (blue) and bulk Ti-doped hematite (red), used to obtain the speciation maps in a). The inset showing the spectral region (A) Ti L3 t2g, used for spectroptychography speciation map (b), exhibiting +0.1 eV energy shift for the surface component; f) summed t2g and eg bands calculated by DFT using model bulk structures for ilmenite (red) and pseudo-brookite (blue). Pseudo-brookite exhibits energy shift toward higher binding energies, strongly increased t2g and slightly reduced eg integrated DOS.