No family of mineral pigments offers a color range as diverse as that of ochres, nor such a coloring power. It ranges from yellow to orange, red, and purple depending on the firing of natural ocher. The ocher industry has transformed the ore into a pigment capable of producing a wide range of reproducible and extremely stable colors that do not fade over time and are resistant to light and UV. Used in the industry of paints, coatings (steel structures, automobiles, and boats), and construction (bricks, tiles, mortars, colored exterior plasters), they also serve as mineral fillers for rubber boots, linoleum, cigarette filters, colored paper, and cardboard and represent, despite the development of synthetic pigments, 20% of the world consumption of iron oxide.