[3] Sometimes basic copper carbonate refers to Cu3(CO3)2(OH)2, a blue crystalline solid also known as the mineral azurite.

In 1794 the French chemist Joseph Louis Proust (1754–1826) thermally decomposed copper carbonate to CO2 and CuO, cupric oxide.

[8] The basic copper carbonates, malachite and azurite, both decompose forming H2O, CO2, and CuO, cupric oxide.

[9] Basic copper carbonate is used to remove thiols and hydrogen sulfide from some gas streams, a process called "sweetening".

[10] One example of the use of both azurite and its artificial form blue verditer[11] is the portrait of the family of Balthasar Gerbier by Peter Paul Rubens.