Toxicity: B, PBR7
Burnt Umber is a form of Raw Umber that a has undergone a process of calcination, becoming warmer, more transparent and easier to disperse. It is a natural earth pigment composed of iron oxide, manganese, and aluminium silicate, with roots in the Umbria region of Italy. It has a good tinting strength, and is very lightfast, quick-drying, and stable in all media. In oils it forms a hard, fairly flexible paint film, though it may be difficult to use in acrylic mediums.
