fletcherite

== English == === Etymology === This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term. From Fletcher +‎ -ite. === Noun === fletcherite (usually uncountable, plural fletcherites) (mineralogy) An isometric-hexoctahedral steel gray mineral containing cobalt, copper, nickel, and sulfur. ==== References ==== David Barthelmy (1997–2026), “Fletcherite”, in Webmineral Mineralogy Database.