“…We found a few structure prototypes that fulfil the four Pauling rules: the rutile structure type, for example, SnO 2 (mp‐856), spinels such as MgAl 2 O 4 (mp‐3536), structures in the scheelite structure type (CaWO 4 ) such as BiAsO 4 (mp‐561068), and many structures in the ZrSiO 4 (mp‐4820) structure type. Furthermore, some phosphates such as α‐AlPO 4 (mp‐3955, berlinite), which is isotypic to α‐quartz, several sulfates such as In 2 (SO 4 ) 3 (mp‐541450), and silicates such as Mg 2 SiO 4 (mp‐2895) are among the fulfilling structures. If one looks at the elementwise fulfilment of these four rules in Figure b, one can see that structures including Al and Si tend to fulfil the rule better than structures including P and the alkali and alkaline‐earth metals.…”