admixture vs mixture

admixture and mixture both are nouns.

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

As nouns, admixture and mixture are synonyms defined as:

Other synonyms of admixture include commixture, intermixture, mix, mixing.

admixture (noun)	mixture (noun)
the act of mixing together	the act of mixing together
an additional ingredient that is added by mixing with the base	an event that combines things in a mixture
the state of impairing the quality or reducing the value of something	any foodstuff made by combining different ingredients
	a collection containing a variety of sorts of things
	(chemistry) a substance consisting of two or more substances mixed together (not in fixed proportions and not with chemical bonding)