citrine vs transparent gem

citrine and transparent gem both are nouns.

Word	Noun	Adjective	Verb	Adverb
citrine	Yes	No	No	No
transparent gem	Yes	No	No	No

As nouns, transparent gem is a hypernym of citrine; that is, transparent gem is a word with a broader meaning than citrine:

citrine: semiprecious yellow quartz resembling topaz
transparent gem: a gemstone having the property of transmitting light without serious diffusion

Other hypernyms of citrine include quartz.

citrine (noun)	transparent gem (noun)
semiprecious yellow quartz resembling topaz	a gemstone having the property of transmitting light without serious diffusion