How do you use clastic rock in a sentence?

The Word 'clastic rock' is a compound noun, a Word for a type of rock, a Word for a thing.

A noun functions as the subject of a sentence or a clause, and as the object of a verb or a preposition.

Example sentences:

Clastic rock is rock composed of broken pieces of older rocks. (subject of the sentence)

Cathedral Rock in Arizona is made of a clastic rock called sandstone. (object of the preposition 'of')