1 tonalite | Definition of tonalite
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tonalite

noun
to·​nal·​ite | \ ˈtōnᵊlˌīt\
plural -s

Definition of tonalite

1 : a granular igneous rock consisting of quartz, andesine, and small amounts of orthoclase
2 : quartz-diorite

History and Etymology for tonalite

German tonalit, from Tonale (Pass) in the Lombard Alps + German -it -ite

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