Siderite var. Pseudomorph after Dolomite from Turț Mine (Ghezuri Mine), Turț, Satu Mare County, Romania. A remarkable and rare pseudomorph of siderite after dolomite from the historic Turț Mine (also known as Ghezuri Mine), Turț, Satu Mare County, Romania. This specimen showcases the complete replacement of original dolomite by dense, earthy-brown siderite, perfectly preserving the delicate crystal morphology while revealing the dramatic mineralogical transformation. Turț Mine is celebrated among collectors for such exceptional pseudomorphic replacements from its complex hydrothermal veins. The subtle zoning and surface texture highlight the geological processes at work, making this a scientific and aesthetic treasure. An outstanding example of paragenetic evolution, ideal for advanced collections focused on pseudomorphs and classic Romanian mineralogy. The Turț Mine (Ghezuri Mine) in Satu Mare County, Romania was ordered to close permanently in 2007, following government directives for mine closures.