Terra di Siena naturale, or raw sienna (Italian)

Raw sienna is a yellowish-brown natural earth pigment, composed primarily of iron oxide hydroxide. The box shows the colour of the pigment in its natural, or raw state. It contains a large quantity of iron oxide and a small quantity (about five percent) of manganese oxide. This kind of pigment is known as yellow ochre, yellow earth, limonite, or terra gialla.The pigment name for natural raw sienna from the Colour Index International, shown on the labels of oil paints,is PY-43. This color box shows a variation of Raw Sienna from the Italian Ferrario 1919 color list.