Zinc Carbonate, \text{ZnCO}_3 ,

Zinc Carbonate, $\backslash text\{ZnCO\}\_3$, is one of the chief ores of the metal. The artificial basic carbonates are produced by precipitation from the solution of a zinc salt with an alkaline carbonate. When a boiling solution of sodium carbonate has the purified solution of zinc sulphate slowly added to it, a basic carbonate of zinc separates, which is then washed and dried. This gives the pure oxide on being heated.