Cerulean Blue – Ancient Earth Pigments

YInMn Blue - Wikipedia

Cerulean Blue – Ancient Earth Pigments

Some dry pigments from Kremer, Earth Pigments, Guerra Pigments and others

pigment Archives — Colossal

Pigment - Wikipedia

Blue Watercolour Swatches - Jane Blundell - Artist

Blue pigments - Wikipedia

Earth colors - Erik Lundgren Watercolor

Review of Kremer's 30th anniversary blue pigment assortment in oil paint

The History of the Color Blue: From Ancient Egypt to New Discoveries