strip mine vs mining

strip mine and mining both are nouns.

Word	Noun	Adjective	Verb	Adverb
strip mine	Yes	No	Yes	No
mining	Yes	No	No	No

strip mine (noun)	mining (noun)
an open mine (usually for coal) where the seams run close to the surface	the act of extracting ores or coal etc from the earth
	laying explosive mines in concealed places to destroy enemy personnel and equipment

strip mine (verb)	mining (verb)
extract (ore) from a strip-mine