charnockite

noun

char·​nock·​ite

ˈchärnəˌkīt

plural -s

1

: any of a series of rocks ranging from granite to norite and pyroxenite all containing hypersthene

2

: hypersthene-granite

Word History

Etymology

Job Charnock †1693 English founder of Calcutta + English -ite; from the fact that his tombstone is made of this rock

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