Fig. 4. Sketch-map representations of the 5A crystal structure landscape. The atomic configurations are color-coded according to their relative lattice energy (bottom right), class following the heuristic classification (top right) and cluster index (gray structure do not belong to a cluster) found using HDBSCAN* on the similarity matrix (left). The structural pattern of each cluster is illustrated with a top and long side (yellow cluster) view of the 5A polymorphs.