Definition of hauynite
: 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)
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Origin and Etymology of hauynite
hauynite from hauyne + -ite; hauyne from French haüyne, from Abbé René Just Haüy †1822 French mineralogist + French -ine
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