earth color vs mineral

earth color and mineral both are nouns.

Word	Noun	Adjective	Verb	Adverb
earth color	Yes	No	No	No
mineral	Yes	Yes	No	No

As nouns, mineral is a hypernym of earth color; that is, mineral is a word with a broader meaning than earth color:

earth color: a colored mineral used as a pigment
mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition

Other hypernyms of earth color include pigment.

earth color (noun)	mineral (noun)
a colored mineral used as a pigment	solid homogeneous inorganic substances occurring in nature having a definite chemical composition

earth color (adjective)	mineral (adjective)
	relating to minerals
	composed of matter other than plant or animal