palagonite

noun

pa·​lag·​o·​nite

pəˈlagəˌnīt

plural -s

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

palagonitic

⸗¦⸗⸗¦nitik

adjective

Word History

Etymology

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

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