This data was collected to study the growth process of an irregular eutectic from a featureless liquid. An irregular eutectic (such as Al-Ge in this work) consists of a faceted constituent (e.g., Si or Ge) and a nonfaceted one (e.g., Al or Ag) which may grow in a coupled manner. The growth process of an irregular eutectic alloy remains poorly understood due to the lack of 4D (i.e., 3D space plus time) resolved data. Thus, the collected data aims to fill-in-the-gaps in our understanding of how irregular eutectics solidify. To achieve the necessary temporal and spatial resolution necessary to resolve the eutectic growth process we use the TIMBIR reconstruction algorithm, described elsewhere. In this technique, we use the following acquisition parameters: 4 sub-frames and 2700 projections per frame. Due to the small penetration depth through the heavy element Ge, the large number of projections and the high exposure time guaranteed high quality images. Included is the raw data collected in the form of the projections. The TIMBIR algorithm is open-source and can be found here: Note also that dark field and flat field measurements, which are used to normalize the data, are in a separate file. For details on the resulting 3D reconstruction visualization, the reader is pointed to the associated journal publication. Correspondence should be directed to Ashwin J. Shahani (shahani@u.northwestern.edu).