lesleyite

noun les·ley·ite \ˈleslēˌīt, -ezl-\

Definition of lesleyite

plural

-s

  1. :  a mineral approximately K2Al823 Si4O20(OH)4 consisting of a brittle mica that is related to margarite but contains potassium

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Origin and Etymology of lesleyite

John Lesley, Jr., 19th century American on whose farm it was found + English -ite


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a rounded knoll or a ridge of ice

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