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Limestone, chalk, and coal are organic sedimentary rocks.
Limestone can be formed partly or mostly by visible shell fragments. .
It is a sedimentary rock made almost entirely of bones and shells.
chalk
== Marl.
Chalk and coquina are both examples of bioclastic sedimentary rocks.
Limestone in various forms such as chalk and coquina.
Limestone, chalk, and coal are organic sedimentary rocks.
where is coquina rock found
where is coquina rock found
Limestone can be formed partly or mostly by visible shell fragments. .
It is a sedimentary rock made almost entirely of bones and shells.
There are many different kinds of sedimentary rock. Four examples of this type of rock are shale, sandstone, limestone and coquina.
Though coquina rock is relatively low density and soft, it does not float. Smaller pieces are often broken and washed around by waves.
Chalk is a form of limestone, a sedimentary rock.
A sedimentary rock called coquina.
composed of shells