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ambonite

noun
am·​bon·​ite | \ˈambəˌnīt\
plural -s

Definition of ambonite 

: a mineral consisting of cordierite-bearing hornblende-biotite-andesite

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First Known Use of ambonite

1913, in the meaning defined above

History and Etymology for ambonite

Dutch amboniet, from Ambon, its locality + Dutch -iet -ite

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The first known use of ambonite was in 1913

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