Well formed Marcasite var. pseudomorph after Pyrrhotite from Turț Mine (Ghezuri Mine), Turț, Satu Mare County, Romania. A striking specimen from the well-known Turt Mine featuring well-formed marcasite pseudomorphs after pyrrhotite. The marcasite has completely replaced the original pyrrhotite, perfectly preserving its distinct crystal shapes and yielding sharp, metallic, pale brass-yellow forms. Turț Mine is celebrated across Romania for producing remarkable replacement minerals, and these pseudomorphs are highly sought after for their rarity and scientific significance. This piece stands out for its crisp preservation of original pyrrhotite geometry and beautiful metallic sheen, making it a superb addition to any sophisticated collection of Romanian classics. The Turț Mine (Ghezuri Mine) in Satu Mare County, Romania was ordered to close permanently in 2007, following government directives for mine closures.