ussingite

noun

us·​sing·​ite

ˈəsiŋˌīt

plural -s

: a mineral Na₂AlSi₃O₈(OH) consisting of a basic sodium aluminum silicate related to the zeolites and occurring in reddish violet masses (hardness 6–7, specific gravity 2.5)

Word History

Etymology

Danish ussingit, from Niels V. Ussing †1911 Danish mineralogist + Danish -it -ite

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