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allochetite

noun
al·​lo·​chet·​ite | \ˌaləˈketˌīt\
plural -s

Definition of allochetite 

: a porphyritic dike rock containing phenocrysts of labradorite, orthoclase, titanaugite, and nepheline in a dense groundmass of feldspar, augite, and hornblende

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First Known Use of allochetite

1913, in the meaning defined above

History and Etymology for allochetite

German allochetit, from Allochet valley, Tyrol, Austria + German -it -ite

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The first known use of allochetite was in 1913

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