tristramite

== English == === Etymology === This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term. ? + -ite === Noun === tristramite (mineralogy) A hexagonal-trapezohedral mineral containing calcium, hydrogen, iron, oxygen, phosphorus, sulfur, and uranium. ==== References ==== David Barthelmy (1997–2026), “Tristramite”, in Webmineral Mineralogy Database.