quartz vs cairngorm

quartz and cairngorm both are nouns.

Word	Noun	Adjective	Verb	Adverb
quartz	Yes	No	No	No
cairngorm	Yes	No	No	No

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

quartz: a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities
cairngorm: a smoky yellow or brown quartz

quartz (noun)	cairngorm (noun)
a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities	a smoky yellow or brown quartz
colorless glass made of almost pure silica