hauynite

noun

ha·​uy·​nite

äˈwēˌnīt

variants or hauyne

äˈwēn

plural -s

: an isometric silicate mineral (Na,Ca)₄−₈Al₆Si₆O₂₄(SO₄)₁− consisting of sulfate of aluminum, calcium, and sodium and occurring commonly as rounded grains in various igneous rocks (hardness 5.5–6, specific gravity 2.4–2.5)

Word History

Etymology

hauynite from hauyne + -ite; hauyne from French haüyne, from Abbé René Just Haüy †1822 French mineralogist + French -ine

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