One of the earliest pigments known to man, ochres are mineral oxides used in colours from the reddish brown to, in this case, yellow-brown range. This very opaque and lightfast colour is often considered essential to a painters' palette.
An inorganic pigment, sometimes called Nickel Titanate Yellow, it might be the coolest yellow GOLDEN offers, it is very pale and may show a faint greenish cast.
Historical azurite, from copper carbonate minerals, lacks the stability and durability required for modern painting, this mixture affordably approximates azurite's deep greenish blue.