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Minerały tarnobrzeskiego złoża siarki rodzimej

Parafiniuk Jan

Przegląd Geologiczny

2023

Vol. 71, nr 12

605--613

The paper reviews the mineral composition of the native sulphur deposit inTarnobrzeg, recognized in the now-defunct open-pit Machów mine. Mineral specimens from this mine are known and valued worldwide. The mineral inventory of the deposit is relatively undiversified. Its main minerals are calcite and native sulphur formed from bacterial reduction of gypsum. They are accompanied by accessory ones: celestine and barite, very rarely strontianite andaragonite. Rare hauerite is also found in overburden clays. Calcite, sulphur, gypsum, celestine and barite form several age generations in the deposit and many interesting morphological forms from which its history can be reconstructed. Most of the spectacularly formed specimens of these minerals are related to the exposure of the deposit and its mining exploitation. The youngest generation of gypsum also documents the initiated process of degradation of the deposit.