aschaffite

noun

aschaf·​fite

əˈshaˌfīt

plural -s

: a lamprophyric dike rock that is related to the quartz-diorites and contains phenocrysts of quartz, plagioclase, and biotite

Word History

Etymology

German aschaffit, from Aschaffenburg, Bavaria, Germany, its locality + German -it -ite

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