What is it
and where is it formed? Gravel is
made up of small
rocks. It can be a mixture of sand,
clay, and small pieces of rock. It is
sedimentary rock and usually found where
there is, or were, rivers, lakes, and glaciers. It happens where rocks have
been weathered by wind or water or eroded.
and where is it mined?
Gravel is mined using
open pit mining or
is dug up, washed, and then sorted by size. It is
mined in all states but the most comes from California,
Texas, Michigan, Ohio, and Arizona. It also comes from
Belgium, Brazil, and Australia.
is it used for?
Gravel is used to make glass, concrete, and in road
building. It is one of the cheapest rocks that is
mined but it is needed all over the world.
Gravel Image provided by
Gravel quarry courtesy of U.S. Fish and Wildlife Service/Alaskan Region
Image provided by