effenbergerite

== English == === Etymology === This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term. ? + -ite === Noun === effenbergerite (mineralogy) A tetragonal-ditetragonal dipyramidal blue mineral containing barium, copper, oxygen, and silicon. ==== References ==== David Barthelmy (1997–2026), “Effenbergerite”, in Webmineral Mineralogy Database.