humberstonite

== English == === Etymology === From Humberstone +‎ -ite. === Noun === humberstonite (mineralogy) A trigonal-rhombohedral colorless mineral containing hydrogen, magnesium, nitrogen, oxygen, potassium, sodium, and sulfur. ==== References ==== David Barthelmy (1997–2026), “Humberstonite”, in Webmineral Mineralogy Database.