The Stone Age is a broad prehistoric time period during which
humans widely used stone for toolmaking. Stone tools were made
from a variety of different kinds of stone. For example, flint
and chert were shaped (or chipped) for use as cutting tools and
weapons, while basalt and sandstone were used for ground stone
tools, such as quern-stones. For more information about the
topic Stone Age, read the full article at Wikipedia.org, or see
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