Natural Iron-Oxide is the basis for this single-pigment colour, named after the region in Italy where it was first mined. Raw Sienna retains more of its yellowish colour because is created prior to...
Historical azurite, from copper carbonate minerals, lacks the stability and durability required for modern painting, this mixture affordably approximates azurite's deep greenish blue.
Part of the earth tone family, Yellow Oxide's is slightly more opaque than it's neighbours (Yellow Ochre) and less red, but with similar lightfastness and durability.
