Browse all items
Raymond R. Burchett
Chalk Pigment
Chalk is a white mineral pigment composed fo calcium carbonate. Calcium carbonate is used as an extender in paints and is a main component in…
National Geographic Society (U.S.) Cartographic Division
Mediterranean, Sepia Pigment
The cuttlefish is known to inhabit the shallows of the Mediterranean Sea where it has long been a popular source for extracting the grey-brown pigment…
National Geographic Society (U.S.) Cartographic Division
Middle East
Verdigris is a green colorant made from the corrosion of copper. Its uses originate from Spain and Greece, with Cyprus being one of the best original…