KENNIS AND KENNIS / MSF / SCIENCE PHOTO LIBRARY KENNIS AND KENNIS / MSF / SCIENCE PHOTO LIBRARY
Prehistoric stone tools. Artwork of examples of stone tools used by prehistoric cultures. Such stone tools are classified according to their complexity, with the first stone tools emerging in Africa some 2.6 million years ago. These are more advanced tools, with multiple chips made to shape the stone into the required shape. Materials used included flint, basalt, quartzite and obsidian.
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