noun, often capitalized M&G
mc·​gov·​ern·​ite | \ məˈgəvə(r)ˌnīt\
plural -s

Definition of mcgovernite

: a mineral Mn5(AsO3)2SiO3(OH)2 consisting of a basic silicate and arsenite of manganese that is found at Sterling Hill, New Jersey

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History and Etymology for mcgovernite

J.J. McGovern †1915 American mine foreman + English -ite

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miscellaneous remnants or debris

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