SENNELIER EXTRAFINE PIGMENT appeared at the end of the 19th century, with Gustave Sennelier who developed the first oil-based colours reserved for his artist clients. Sennelier understood the need to make his preparations using high quality pigments, whose origins were carefully checked and whose chemical characteristics were very precise. Compliance with these requirements ensured the preservation of the original tones and the durability of the artists' works.
Today, although many pigments have disappeared due to the exhaustion of their natural deposits or have been banned because of their toxicity, the market offers a wide variety of synthetic pigments which match the results of the old mineral pigments, such as Lapis Lazuli, Cinnabar... Of course, earths are still extracted which contain substances resulting from the action of natural elements on certain minerals: ochres are clays coloured by iron oxides. Some "burnt" earths are obtained by calcination of the original earth.