Meaning & use
clastic
Composed of fragments of pre-existing rocks or minerals, used especially of certain sedimentary rock.
See it in a sentence
Sandstone is a common clastic rock formed from grains of sand cemented together.
Geologists classified the layer as clastic because it was made of broken rock fragments.
A note on using this word
Clastic rocks are defined by their fragmented origin, in contrast to rocks formed by chemical precipitation or organic material.
Words with a similar meaning
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