ettringite

== English == === Noun === ettringite (countable and uncountable, plural ettringites) (mineralogy) A trigonal hydrous calcium aluminium sulfate mineral. === Further reading === David Barthelmy (1997–2026), “Ettringite”, in Webmineral Mineralogy Database. “ettringite”, in Mindat.org‎[1], Hudson Institute of Mineralogy, 2000–2026.