Inorganic pigments like natural earth paints, synthetic iron oxide pigments, e.g. ochre, English red, Persian red, earth black, and selected mineral paints such as ultramarine and chromium green.
Inorganic pigments like natural earth paints, synthetic iron oxide pigments, e.g. ochre, English red, Persian red, earth black, and selected mineral paints such as ultramarine and chromium green.