Fig. 7

Stereomicroscopic (left column) and ESEM documentation (right column) of the protected, aged and cleaned specimens. The images shows the presence of residual calcareous deposit (LD) and loose crystals (LC)
Stereomicroscopic (left column) and ESEM documentation (right column) of the protected, aged and cleaned specimens. The images shows the presence of residual calcareous deposit (LD) and loose crystals (LC)