Calamine \Cal"a*mine\ (k[a^]l"[.a]*m[imac]n or -m[i^]n), n. [F. calamine, LL. calamina, fr. L. Cadmia. See Cadmia.]

(min.) A mineral, the hydrous silicate of zinc.

Note: The name was formerly applied to both the carbonate and silicate of zinc each of which is valuabic as an ore; but it is now usually restricted to the latter, the former being called smithsonite.

Source: Webster's Revised Unabridged Dictionary (1913)