Materialism in its coherent version is essentially chronological, not metaphysical.
That is, materialism says there is mind, but mind (in some way related to the development of the brain) comes about through evolution, and is therefore a relatively late development in the universe.
This is contra the position that mind is at the beginning of the universe, i.e., the typical Christian view.
More specifically, in Christianity, mind in some sense creates the order in the universe, whereas in materialism mind is created by an ordering of the universe.
I.e., ‘materialism’ isn’t about what there is, but about when certain kinds of things came about.