Fig. 3
Images obtained by digital microscopy of samples a 4_red, b 2_yellow, c 5_yellow, d 6_orange, e 1_green and f 5_green, representative of the appearance of most samples
Fig. 3 | Heritage Science
Images obtained by digital microscopy of samples a 4_red, b 2_yellow, c 5_yellow, d 6_orange, e 1_green and f 5_green, representative of the appearance of most samples