Columbite samples from the quarry No.2 of the Volodarsk-Volyn piezoelectric quartz deposit were investigated. Chemical data revealed a tungsten admixture, chemical heterogeneity of the peripheral zone of one of the columbite crystals, and allowed the separation of a new mineral for Ukraine - qitianlingite, which is a complex oxide of manganese, iron, tantalum, niobium, and tungsten, which forms the inclusion in the peripheral zone of the columbite crystal. In addition, an unknown silicate-tantalum phase with impurities of uranium, which was formed during the last stages of columbite growth or after its growth, and developed in the interstitium between columbite and qitianlingite, was detected.


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  1. GinzburgA..I, GorzhevskayaS.A, ErofeevaE.A., SidorenkoG.A.
    [1960] Titanium-tantalum-niobate. Geology of deposits of rare elements, Moscow, Gosgeoltehizdat, 10, 129–142
    [Google Scholar]
  2. PavlyshynV.I., MarchenkoE.Y.
    [1969] About columbian from granite chamber pegmatites of Ukraine. DAN AN USSR, 8, 699–702
    [Google Scholar]
  3. LazarenkoE.K, LatyshV.T., PavlishinV.l., SorokinYu.G
    [1973] The mineralogy and genesis of the chamber pegmatites of Volhynia. Lviv, Higher School, 126–129
    [Google Scholar]
  4. PavlishinV.I., DovgyS.A.
    [2007] Mineralogy of chamber pegmatites of VolhyniaMoscow. Ecost. Issue 12, 40–42
    [Google Scholar]
  5. Bjørlykke,H.
    [1934] The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift, 14, 211–311.
    [Google Scholar]
  6. Cempirek, J. & Groat, L.A.
    Dixon,A., [2014] Mineralogy and geochemistry of pegmatites on Mount Begbie, British Columbia. Canadian Mineralogist, 52, 129–164.
    [Google Scholar]
  7. GuangmingYang, SuWang, ZhizhongPeng, and JingzhenBu
    [1985] Acta Mineralogica Sinica, 5(3), 193–198.
    [Google Scholar]

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