Primary particles of oxide-ceramic material have an average particle size of 10-1000 nm, and are coated with a chromophoric component. Independent claims are included for: (1) a process of preparing the primary particles, comprising dispersing an oxide-ceramic material in a solvent to form a suspension and adding a chromophoric component to the obtained suspension (2) a granular material comprising an oxide-ceramic material, which comprises the primary particles (3) a process of preparing the granular material, comprising the dispersing and adding steps of the process of preparing the primary particles and drying and granulating the suspension (4) a suspension based on oxide-ceramic material, comprising (wt.%) the primary particles (10-95) and organic component (5-90), in each case relative to the overall mass of the suspension and (5) a process of preparing ceramic moldings, comprising preparing a green body by curing the suspension by local introduction of radiation energy with formation of a geometric shape of the green body subjecting the green body to a heat treatment to remove a binder, to obtain a white body and sintering the white body.
