megacyclite

== English == === Etymology === From Ancient Greek μέγας (mégas, “large”) and κύκλος (kúklos, “circle”), because of its cyclosilicate categorization, +‎ -ite. === Noun === megacyclite (mineralogy) A monoclinic-prismatic mineral containing hydrogen, oxygen, potassium, silicon, and sodium. === Further reading === David Barthelmy (1997–2026), “Megacyclite”, in Webmineral Mineralogy Database. “megacyclite”, in Mindat.org, Keswick, Va.: Hudson Institute of Mineralogy, 2000–2026.