The object of study includes the copper slags of the Petropavlovsk plant, which had been operated since 1760 to 1822 in area of an eponymous settlement, which was further transformed to town of Severouralsk (Sverdlovsk region). The composition of samples was determined using scanning electron microscopy, inductively coupled plasma mass spectrometry and X-ray spectral analysis. The slags are composed of fayalite-hedenbergite aggregates with iscorite, magnetite, glass, metallic copper, bornite, digenite (?), sphalerite and galena. Secondary mineralization includes cuprite, brochantite, barite and atacamite. The slags are a result of smelting of sphalerite-bearing chalcopyrite ores, which were extracted at the nearby Tur’ya mines and other small ore occurrences located in the vicinity of the Petropavlovsk plant.

Key words: North Urals, Petropavlovsk plant, copper slag, mineralogy, copper, hedenbergite, fayalite, iscorite.

Funding. The study was supported by the Russian Science Foundation and the Government of the Sverdlovsk region, grant no. 24-27-20061, https://rscf.ru/project/24-27-20061/.

Confict of interest. The authors declare that they have no conficts of interest.

Author contribution. Yu.V. Erokhin – concept development, research, manuscript writing; M.V. Tsyganko – sample selection, editing the fnal version of the manuscript; V.V. Khiller – research, manuscript writing; P.B. Shiryaev – analytical work, editing the fnal version of the manuscript; N.N. Farrakhova – analytical work. All authors approved the fnal version of the article before publication.

For citation: Erokhin Yu.V., Tsyganko M.V., Khiller V.V., Shiryaev P.B., Farrakhova N.N. Mineralogy of copper slags from the Petropavlovsky plant (Severouralsk, Sverdlovsk region). Mineralogy, 2025, 11(3), 37–50. DOI: 10.35597/2313-545X-2025-11-3-4

Received 11.06.2025, revised 08.07.2025, accepted 24.07.2025

Yu.V. Erokhin, Zavaritsky Institute of Geology and Geochemistry, RAS Ural Branch, Yekaterinburg, Russia; erokhin-yu@yandex.ru

M.V. Tsyganko, Mineralogical Museum «Shtufnoi Kabinet», Severouralsk, Sverdlovsk oblast, Russia; zigankom@mail.ru

V.V. Khiller, Zavaritsky Institute of Geology and Geochemistry, RAS Ural Branch, Yekaterinburg, Russia; 

P.B. Shiryaev, Zavaritsky Institute of Geology and Geochemistry, RAS Ural Branch, Yekaterinburg, Russia; 

N.N. Farrakhova, Zavaritsky Institute of Geology and Geochemistry, RAS Ural Branch, Yekaterinburg, Russia

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