Enkaustikos - Pompeii RedPompeii Red is a Natural Iron Oxide that at first glance may look much like a traditional Burnt Sienna, but only in mass tone. In comparison, it is a degree lighter in value and has a much more muted tone about it. Pompeii Red has a definite burnt reddish orange hue. When fully extended into a glaze the orange notes are most prevalent, although very soft and tonal. Semi transparent, yet it has slight granulation making it appealing for printmaking.