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Calamine is an archaic name for an Ore of Zinc . The name was derived from the Belgian town of Kelmis , whose French name is "La Calamine", which is home to a zinc mine.

During the late 18th century it was discovered that what had been thought to be one ore was actually two distinct Minerals :


The two minerals are usually very similar in appearance and can only be distinguished through Chemical Analysis . The first to separate the minerals was the British chemist and mineralogist James Smithson in 1803. In the Mining industry the term calamine is still used to refer to both minerals indiscriminately.

In Mineralogy calamine is no longer considered a valid term. It has been replaced by Smithsonite and Hemimorphite .

Until the 18th century, ''calamine'' was essential for the production of Brass since metallic zinc does not exist in nature and no technique was known to produce it. Brass produced using calamine is called Calamine Brass .