palagonite

noun pa·lag·o·nite \pəˈlagəˌnīt\

Definition of palagonite

plural

-s

  1. :  basaltic glass that is more or less altered and devitrified and that occurs with volcanic ash in the form of a basaltic tuff

palagonitic

adjective

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Origin and Etymology of palagonite

German palagonit, from Palagonia, Sicily + German -it -ite


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