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 the heating process that creates "burnt" sienna.
Umber is essentially clay, and this variation on the PBr7 pigment is the lighter (un-burnt) version of this classic earth tone that originated in the Umbria region of Italy.
Natural Iron-Oxide is the basis for this single-pigment color, named after the region in Italy where it was first mined. Raw Sienna retains more of its yellowish color 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.
