malladrite

noun
mal·​la·​drite | \ məˈläˌdrīt, ˈmaləˌd- \
plural -s

Definition of malladrite

: a sodium fluosilicate Na2SiF6 occurring in minute hexagonal crystals in fumaroles in the crater of Vesuvius near Naples in Italy

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History and Etymology for malladrite

Italian, from Alessandro Malladra †1944 Italian geologist + Italian -ite

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Cite this Entry

“Malladrite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/malladrite. Accessed 26 Jan. 2021.

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