I-copper carbonate eyisisekelo (Cu₂(OH)₂CO₃), impushana eluhlaza okotshani enokwakheka okusondelene nokwetshe le-malachite. Isetshenziswa njengombala wethusi oluhlaza okotshani noma oluhlaza okwesibhakabhaka kuma-glaze, engilazini naku-faience, nanjengomthombo we-copper oxide.