fredrikssonite

== English == === Etymology === From Fredriksson +‎ -ite. === Noun === fredrikssonite (usually uncountable, plural fredrikssonites) (mineralogy) An orthorhombic-dipyramidal reddish brown mineral containing boron, iron, magnesium, manganese, and oxygen. ==== References ==== David Barthelmy (1997–2026), “Fredrikssonite”, in Webmineral Mineralogy Database.