holdenite

== English == === Etymology === From Holden +‎ -ite after Albert Fairchild Holden (1866-1913), a mining engineer from Salt Lake City, Utah, USA. === Noun === holdenite (mineralogy) An orthorhombic-dipyramidal mineral containing arsenic, hydrogen, magnesium, manganese, oxygen, silicon, and zinc. ==== Translations ==== === References === David Barthelmy (1997–2026), “Holdenite”, in Webmineral Mineralogy Database.