groutite

noun
grout·​ite | \ˈgrau̇tˌīt\
plural -s

Definition of groutite 

: a mineral HMnO2 consisting of manganese, hydrogen, and oxygen, polymorphous with manganite, and belonging to the diaspore group

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History and Etymology for groutite

Frank F. Grout †1958 American geologist and mineralogist + English -ite

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Dictionary Entries near groutite

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