nephelinite
[ nef-uh-luh-nahyt ]
/ ˈnɛf ə ləˌnaɪt /
noun Petrography.
a fine-grained, dark rock of volcanic origin, essentially a basalt containing nepheline but no feldspar and little or no olivine.
OTHER WORDS FROM nephelinite
neph·e·li·nit·ic [nef-uh-luh-nit-ik] /ˌnɛf ə ləˈnɪt ɪk/, adjectiveWords nearby nephelinite
nepeta,
neph-,
nephanalysis,
nephele,
nepheline,
nephelinite,
nephelometer,
nephew,
nepho-,
nephogram,
nephograph
Example sentences from the Web for nephelinite
They are chiefly leucite and nepheline rocks, such as leucitite, leucitophyre and nephelinite, but basalt and trachyte also occur.
British Dictionary definitions for nephelinite
nephelinite
/ (ˈnɛfɪlɪˌnaɪt) /
noun
a fine-grained basic laval rock consisting of pyroxene and nepheline