This rock drill is very efficient and can quickly cut through rock.

This area is rich in breccia.

This mountain is mainly composed of gneiss.

This area is rich in gabbro.

This mountain is made of diorite.

Cephalopods are a type of marine life that includes squid and octopus.

I found a stone centipede in the garden.

His son was born with clubfoot.

Myriapods belong to the same Arthropoda phylum as insects.

I am going to see a podiatrist who will examine my foot problem.