What is it and where is it formed?
Sandstone is a
sedimentary rock. It usually has
quartz in it.
Grains of sand are weathered, which means blown around by the
wind, or pushed around by rain, water, or erosion. When it
settles down in one place, it forms layers that are stuck
together with the
minerals that fall between the grains of
How and where is it mined? Sandstone is
quarrying. Sandstone is sometimes found where there
used to be small sea areas. It is formed in deserts or dry
places like the Sahara Desert in Africa. In the western United
States, most sandstone is red. It can also be found around
lakes, rivers, deltas, and shores all over the world.
What is it used for? Sandstone is used in
countertops, tiles, concrete, play sand, glass filing, polishing
metal, sandblasting, and in making buildings.
Small grained sandstone can change into
shale. Larger grained sandstone can change into
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