magnetic iron-ore vs iron ore

magnetic iron-ore and iron ore both are nouns.

Word	Noun	Adjective	Verb	Adverb
magnetic iron-ore	Yes	No	No	No
iron ore	Yes	No	No	No

As nouns, iron ore is a hypernym of magnetic iron-ore; that is, iron ore is a word with a broader meaning than magnetic iron-ore:

magnetic iron-ore (noun)	iron ore (noun)
an oxide of iron that is strongly attracted by magnets	an ore from which iron can be extracted