anorthite

== English == === Etymology === From Ancient Greek αν- (an-, “not”) + ὀρθός (orthós, “straight”) "not perpendicular; less than straight", in reference to its odd. === Noun === anorthite (countable and uncountable, plural anorthites) (mineralogy) A variety of plagioclase feldspar, the calcium endmember of that series. ==== Derived terms ==== anorthitic ==== Translations ==== === Further reading === David Barthelmy (1997–2026), “Anorthite”, in Webmineral Mineralogy Database. “anorthite”, in Mindat.org, Keswick, Va.: Hudson Institute of Mineralogy, 2000–2026.