2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/124015The pressure-driven tetragonal-to-monoclinic phase transition in CaWO4 and related scheelite-structured orthotungstates is analysed in terms of spontaneous strains. Based upon our previous high-pressure x-ray diffraction results and the Landau theory, it is suggested that the scheelite-to-fergusonite transition is of second order in nature.14 pages, 3 figuresMaterials Sciencetext