Converse of subject

• cement: They can consist of clays, muds, sands or gravels or a mixture of these, often cemented together by iron oxides.

Converse of object

• contain: Other land can contain magnetic iron oxides, which are purely natural.

• form: The iron oxide formed was returned to the blast furnace.

Adjective modifier

• red: One possible cause for this is the chemical reduction of the red iron oxide.

• yellow: The 10 mg orodispersible tablets also contain red iron oxide E172 and the 15 mg orodispersible tablets contain yellow iron oxide E172.

• magnetic: Other land can contain magnetic iron oxides, which are purely natural.

Modifies a noun

• yellow: The tablet coating contains: hypromellose phthalate, titanium dioxide ( E171 ), iron oxide yellow ( E172 ).

• red: The 360mg tablets also contain iron oxide red ( E172 ).

• nanoparticle: TEM image showing clustering of iron oxide nanoparticle spheres along the edges of clay mineral plates in River Isere sediment.