Item:284 600 144, Pigment: Natural Hydrated Yellow Iron Oxide Py 43 (77492), Lightfastness: Excellent, Semi-transparent , Low-staining, Granulating. This unusually pure pigment is mined in Russia, south of Moscow. Rich and warm, Goethite is a dark tea color in masstone and washes out to a rich, warm tan. In washes, it displays intriguing granulation, with pools of light and dark in every brushstroke. Like all colors derived from the earth, it is lightfast and permanent.