nasonite

noun

na·​son·​ite

ˈnāsᵊnˌīt

plural -s

: a mineral Ca₄Pb₆Si₆O₂₁Cl₂ consisting of lead calcium silicate with chloride and occurring as granular white masses

Word History

Etymology

Frank L. Nason †1928 American geologist + English -ite

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