gregoryite

== English == === Etymology === From Gregory +‎ -ite. === Noun === gregoryite (uncountable) (mineralogy) A mineral containing calcium, carbon, oxygen, potassium and sodium. === Further reading === David Barthelmy (1997–2026), “Gregoryite”, in Webmineral Mineralogy Database. “gregoryite”, in Mindat.org, Keswick, Va.: Hudson Institute of Mineralogy, 2000–2026.