haüyne


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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.