noun rams·dell·ite \ˈramzˌdeˌlīt\

Definition of ramsdellite



  1. :  a mineral consisting of manganese dioxide that is polymorphous with pyrolusite

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Origin and Etymology of ramsdellite

Lewis S. Ramsdell, born 1895 American mineralogist + English -ite

Seen and Heard

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feeling or affected by lethargy

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