See Also: CHALCO(finance)
chalco-(dictionary)

chalco- (iou)



chalco- combining form of Greek khalkos copper, brass: see -O-.
chalcocite noun (Mineralogy) orthorhombic copper(I) sulphide, usu. occurring as black, fine-grained masses M19.
chalco'lithic adjective & noun (Archaeology) (designating or pertaining to) a brief period following the end of the Stone Age in some areas, during which copper implements were used as well as stone ones, before bronze technology was introduced E20.
chal'cophanite noun [Greek phan- showing] Mineralogy a hydrated oxide of zinc and manganese, sometimes with a bronze lustre L19.
chalcophil(e) adjective & noun (Geology & Chemistry) (designating) an element which commonly occurs as a sulphide and is supposed to have become concentrated in the mantle E20.