Definition of nephelinite in English:

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nephelinite

Pronunciation: /ˈnɛf(ə)lɪnʌɪt/

noun

[mass noun] Geology
A fine-grained basaltic rock containing nepheline in place of plagioclase feldspar.
Example sentences
  • Geochemically, the pyroxene nephelinite is highly enriched in LILE compared with the first one.
  • Another New Zealand locality for this type of nephelinite is in the Auckland Domain.
  • The lava flows within the pyroclasts are composed of nephelinite and phonolite.
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