The Chalcolithic Age, an era between the Stone Age and the Bronze Age, involved the use of copper for tools but they were generally only possessed by the higher members of society and, unlike stone and bronze (which had yet to be discovered), were too soft to be in general usage. The word chalcolithic derives from the Greek words for copper and stone.Özti"s toolsOne of the great examples of the Chalcolithic Age is Özti...