Calcite with Dolomite, Quartz, Pyrite

specimen number:
2312453

location:
Turt Mine, Satu Mare Co., Romania

description:
Classic material for this locality with crystallized dolomite coating previous crystals of calcite across a quartz crystal matrix. Minor pyrite is present. In great condition.

The Turt Mine, located in the Satu Mare County of northwestern Romania within the Oas Mountains, is a historic mining district with roots extending back several centuries, with structured commercial and state operations expanding during the Austro-Hungarian period and continuing through the 20th century before closing. Geologically, the deposit is associated with Neogene calc-alkaline volcanic activity, consisting of epithermal veins hosted in volcanic and sedimentary rocks formed during intense hydrothermal mineralization. Mineralogically, the district is celebrated for its rich base metal assemblages, producing exceptional specimens of siderite forming replacements after calcite, pyrite, galena, etc.

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