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noun
An igneous rock consisting essentially of plagioclase and either leucite or nephelite, or both.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: geography, geology, natural-sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
From Latin tephrītis and Ancient Greek τεφρῖτις (tephrîtis). By surface analysis, tephro- + -ite.
