jefferisite

noun jef·fer·is·ite \ˈjef(ə)rə̇ˌsīt\

Definition of jefferisite

plural

-s

  1. :  a mineral consisting of a vermiculite containing iron, aluminum, and magnesium

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Origin and Etymology of jefferisite

William W. Jefferis †1906 American banker + English -ite


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a rounded knoll or a ridge of ice

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