The atoms per formula (apfu) were calculated assuming the ideal stoichiometry of the borate minerals (4 apfu for the ludwigite group minerals and 2 apfu for szaibelyite). Supplementary Material includes all the EPMA analyses of the skarn minerals. Several regions of the samples were selected ...
The mechanical exfo- liation method enables facile fabrication of the vdWHs [54]. However, the lack of large-area uniformity and layer-num- ber controllability limits the applicability of the mechanical exfoliation method; moreover, the method is difficult to use for industrial production. The ...