astrophyllite

== English == === Etymology === From Ancient Greek ἀστήρ (astḗr, “star”) + φύλλον (phúllon, “leaf”) +‎ -ite. === Noun === astrophyllite (countable and uncountable, plural astrophyllites) (mineralogy) A rare, brown to golden-yellow hydrous potassium iron titanium silicate mineral, visually identical to kupletskite. ==== Derived terms ==== === Further reading === David Barthelmy (1997–2026), “Astrophyllite”, in Webmineral Mineralogy Database. “astrophyllite”, in Mindat.org, Keswick, Va.: Hudson Institute of Mineralogy, 2000–2026.