The article characterizes Ti minerals from different mineral assemblages of the Aktash magnetite-polymetallic deposit (Western Karamazar, Northern Tajikistan). Anatase, ferrous pyrophanite, perovskite, calzirtite, zirconolite and titanite are described in ores of the deposit and most of these minerals are found for the frst time in both the Aktash deposit and the entire Karamazar region. The minerals are identifed using optical and electron microscopy. The presence of anatase, pyrophanite, perovskite and titanite is also confrmed by Raman spectroscopy. Perovskite and calzirtite are found in serpentine-phlogopite-calcite skarns, anatase, pyrophanite, perovskite, zirconolite and titanite are determined in serpentine-garnet-pyroxene skarns, which host galena-sphalerite ores, and pyrophanite and titanite are identifed in sulfde-magnetite ores. Based on mineral assemblages and relationships, it is concluded that perovskite, calzirtite, and zirconolite formed at the beginning of the skarn stage, which is followed by the formation of anatase, pyrophanite, titanite and zircon.

Received 10.10.2024, revised 25.11.2024, accepted 01.12.2024

Keywords: Ti minerals, anatase, pyrophanite, perovskite, calzirtite, zirconolite, titanite, skarns, Raman spectra, Aktash deposit, Western Karamazar.

Funding. This work was supported by state contract of the South Urals Federal Research Center of Mineralogy and Geoecology UB RAS (no. 122031600292-6) and the Russian Science Foundation, project no. 22-17-00215.

Acknowledgements. We are grateful to V.V. Maslennikov for supervision of our study and N.R. Ayupova, E.V. Belogub and I.Yu. Melekestseva for constructive and useful comments, which allowed us to improve the manuscript.

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

Author contribution. U.A. Yatimov – conceptualization, investigation; I.A. Blinov, M.A. Rassomakhin, S.M. Lebedeva – analytical/experimental works; U.A. Yatimov, N.S. Safaraliev, M.A. Rassomakhin – writing – original draft, visualization, writing – review & editing. All the authors approved the fnal version of the manuscript prior to publication.

For citation: Yatimov U.A., Blinov I.A., Rassomakhin M.A., Lebedeva S.M., Safaraliev N.S. Ti minerals of titanium in ores and skarns of the Aktash magnetite-polymetallic deposit, Western Karamazar, Tajikistan. Mineralogy, 2024, 10(4), 172–185. DOI: 10.35597/2313-545X-2024-10-4-9

U.A. Yatimov, South Urals Federal Research Center of Mineralogy and Geoecology UB RAS, Miass, Chelyabinsk region, 456317, Russia; umed1990@list.ru

I.A. Blinov, South Urals Federal Research Center of Mineralogy and Geoecology UB RAS, Miass, Chelyabinsk region, 456317, Russia;

M.A. Rassomakhin, South Urals Federal Research Center of Mineralogy and Geoecology UB RAS, Miass, Chelyabinsk region, 456317, Russia;

S.M. Lebedeva, South Urals Federal Research Center of Mineralogy and Geoecology UB RAS, Miass, Chelyabinsk region, 456317, Russia;

N.S. Safaraliev, Tajik National University, Dushanbe, 734025 Republic of Tajikistan

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