t=7m
t=13m8s
Ochre
t=19m31s
Earth Pigments ..
Natural Pigments, Plant Dyes
https://www.youtube.com/playlist?list=PLXYFDuJaCJL0ryoIH1fhXua8tD75EfVrR
Secrets of the Castle - Ruth, Peter and Tom at Guédelon
https://www.youtube.com/playlist?list=PL-vRsHsClLJ5TaamXpl02RidkWGxe96TB
