orthopinakiolite

== English == === Etymology === For its composition related to pinakiolite with an orthorhombic crystal system. === Noun === orthopinakiolite (mineralogy) An orthorhombic-dipyramidal black mineral containing boron, iron, magnesium, manganese, and oxygen. === Further reading === David Barthelmy (1997–2026), “Orthopinakiolite”, in Webmineral Mineralogy Database. “orthopinakiolite”, in Mindat.org‎[1], Hudson Institute of Mineralogy, 2000–2026.