A synthetically prepared azure blue pigment composed of copper hydroxide and copper carbonate. Bremen blue was probably first made in the 18th century and was used in the 19th century for both distemper and oil based interior house paints. Its particles are more rounded and regular in size that natural azurite. See azurite, and copper carbonate, basic. Synonyms: blue verditer; blue bice; copper blue; blue ash; lime blue; Neuwied blue; mountain blue. Museum of Fine Arts, Boston (2000). [J. Cassar, R. de Angelis]