aquamarine vs turquoise

aquamarine and turquoise both are nouns.

Word	Noun	Adjective	Verb	Adverb
aquamarine	Yes	No	No	No
turquoise	Yes	No	No	No

As nouns, aquamarine and turquoise are synonyms defined as:

Other synonyms of aquamarine include aqua, cobalt blue, greenish blue, peacock blue.

aquamarine (noun)	turquoise (noun)
a shade of blue tinged with green	a shade of blue tinged with green
a transparent variety of beryl that is blue green in color	a blue to grey green mineral consisting of copper aluminum phosphate