Editing Sienna (section)

===Raw sienna===
{{infobox color
|title=Terra di Siena naturale, or raw sienna (Italian)
|hex=965434
|spelling=colour
|source=[[Ferrario 1919: Cartella colori]],<ref name="ferrario">{{Cite web|url=http://www.ferrariospa.it/DocsImgs/Docs/cartColori_ferrario1919.pdf|title=cartColori_ferrario1919|website=www.ferrariospa.it}}</ref> colour 69
|isccname=Strong brown}}
Raw sienna is a yellowish-brown natural earth pigment,<ref name="Shorter OED"/> composed primarily of iron oxide hydroxide. The box shows the color 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|Color Index International]], shown on the labels of oil paints,  is PY-43.

This box at right shows a variation of raw sienna from the Italian Ferrario 1919 color list.
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