onyx marble vs calcite

onyx marble and calcite both are nouns.

Word	Noun	Adjective	Verb	Adverb
onyx marble	Yes	No	No	No
calcite	Yes	No	No	No

As nouns, calcite is a hypernym of onyx marble; that is, calcite is a word with a broader meaning than onyx marble:

onyx marble: a hard compact kind of calcite
calcite: a common mineral consisting of crystallized calcium carbonate; a major constituent of limestone

onyx marble (noun)	calcite (noun)
a hard compact kind of calcite	a common mineral consisting of crystallized calcium carbonate; a major constituent of limestone