impurity vs admixture

impurity and admixture both are nouns.

Word	Noun	Adjective	Verb	Adverb
impurity	Yes	No	No	No
admixture	Yes	No	No	No

As nouns, admixture is a hyponym of impurity; that is, admixture is a word with a more specific, narrower meaning than impurity:

impurity: the condition of being impure
admixture: the state of impairing the quality or reducing the value of something

Other hyponyms of impurity include adulteration, debasement, alloy, contamination, taint, dirtiness, putridity, pollution.

impurity (noun)	admixture (noun)
the condition of being impure	the act of mixing together
worthless or dangerous material that should be removed	an additional ingredient that is added by mixing with the base
	the state of impairing the quality or reducing the value of something