Calamine \(\mathrm{ZnCO}_3\) is the ore of \(\mathrm{Zn}\). Bauxite, \(\mathrm{AlO}_x(\mathrm{OH})_{3-2 x}\) is the ore of \(\mathrm{Al}\). (where, \(0 < x < 1\))
Malachite, \(\mathrm{CuCO}_3 \cdot \mathrm{Cu}(\mathrm{OH})_2\) is the ore of \(\mathrm{Cu}\). Siderite, \(\mathrm{FeCO}_3\) is the ore of \(\mathrm{Fe}\).