Fig. 2: SEM images and EDS spectra of simulant MCCI materials.

Showing a MCCI-1, b MCCI-2 and c MCCI-3; and EDS spectra of d uranium-containing zircon and e the Al-Ca-Fe rich silicate phase, identified by XRD as anorthite. Scale bars are as follow: a 10 µm; b 8 µm; and c 8 µm.