Tesaurus d'Art i Arquitectura Getty Institute 0000-00-00 2024-01-24 15:40:44 en iron oxide red300013537red iron oxidered oxide Refers to a variety of dense, permanent pigments that produce a wide variety of red shades ranging from light, bright red to a deep purplish red. Pigments can be natural, earth pigments (hematite, Indian red, Venetian red) or synthetically prepared pigments (light red). All iron oxide reds are stable, permanent pigments with good tinting strength and are the primary colorant in ochers and siennas. The pigment was first manufactured in the early 18th century. Today it is often a furnace product made from steel-mill waste. roig de Venècia rojo óxido de hierro 2026-03-30 20:32:59