Calamine, or Calamy, Lapis calamlnaris, or Cadmia fossilis, a species of stone, ormineral, which contains zinc, iron, and some other substances. It is of various colours, somewhat hard and brittle, and of considerable weight; its magnitude is generally considered as a proof of its excellence. It is found principally in Derbyshire, Nottinghamshire, the western parts of England, and also in Wales. This mineral constitutes an article of the Materia Medico.; but, previously to being used, it is generally roasted, or calcined, in order to separate the sulphureous matter it is supposed to contain in its crude state ; and also to render it more easily reducible into a fine powder. Thus prepared, it is employed in collyria, against defluxion of thin acrid humors from the eyes; for drying up humid, running ulcers, and for healing excoriations.