haüyne


haüyne

[ä′wēn] (mineralogy) (Na,Ca)4-8(Al6Si6O24)(SO4,S)1-2An isometric silicate mineral of the sodalite group occurring as grains embedded in various igneous rocks; hardness is 5.5-6 on Mohs scale, and specific gravity is 2.4-2.5. Also known as haüynite.