The invention relates to a process for making a ceramic body that comprises providing particles of a metal salt precursor material wetted by a liquid medium. The particles are characterized by a grainsize of below 600 nm, and the precursor material has a solubility in the liquid medium of at least 10-5mol/L. A pressure of being not less than 100MPa is applied at a temperature of below 100 DEG C,rendering a material of high theoretical density values previously unattainable at low temperatures. The invention further relates to a calcium carbonate ceramic material of the vaterite isomorph having a density of the material being not less than 1.76 g/cm3 and a Modulus of rupture being not less than 30 MPa, and to a calcium phosphate ceramic material consisting of the monetite isomorph with being not less than 2.5 g/cm3 density and a Modulus of rupture being not less than 18 MPa.