cyanophyllite

== English == === Etymology === From Ancient Greek κυανός (kuanós, “blue-green”) + φύλλον (phúllon, “leaf”) for its color and crystal habit, +‎ -ite. === Noun === cyanophyllite (mineralogy, outdated) An orthorhombic-dipyramidal greenish blue mineral containing aluminum, antimony, copper, hydrogen, and oxygen. A polytype of cualstibite, and discredited for such in 2012. === Further reading === David Barthelmy (1997–2026), “Cyanophyllite”, in Webmineral Mineralogy Database. “Cualstibite-1M”, in Mindat.org, Keswick, Va.: Hudson Institute of Mineralogy, 2000–2026.