This archive contains files with research data supplement to a publication "Experimental constrains on the mechanism and the amount of spectral shock darkening in ordinary chondrite materials during asteroid collisions" by Kohout et al. The experiment and material description and sample / zone numbering is consistent with the publication. Content: Chelyabinsk X-ray MicrtoTomography (XMT) dataset of half-sphere and steel jacket cropped. EMPA + Raman results.xlsx - data file with results of Electron Microprobe Analysis (EMPA) and Raman Spectroscopy EMPA BSE images.zip - archive with EMPA Back Scaterred Electrons (BSE) images and locations of EMPA points Full-sized version of the figures in the manuscript Reflectance UV-VIS-NIR-MIR all data.xlsx - data file with reflectance measurements XRD.zip - data file with X-ray diffraction measurement Zone IV SEM BSE images.zip - archive with high-resolution Scanning Electron Microscope (SEM) BSE images of the zone IV Zone IV SEM EDS element profiles and maps.zip - archive with SEM Energy Dispersive Spectroscopy (EDS) element profiles and maps (in detector counts) of the needle olivine crystals in the zone IV