Accessory magnetite is a common mineral of rocks of the Vishnevogorsky alkaline complex, South Urals. Inclusions of ilmenite, pyrophanite and gahnite in magnetite are the exsolution products. Individuals of magnetite are characterized by compromise growth surfaces with potassium feldspar, albite, nepheline, annite, aegirine, cancrinite, analcime, zircon, calcite, pyrochlore, ilmen-ite, pyrite, pyrrhotite, sphalerite, apatite, pyrophanite, gahnite and calcioburbankite. The assemblages of magnetite in diferent rocks are eutectic. In most cases, magnetite contains low contents of Ti, Mn, Zn, Al (exsolution products) and V. 

Figures 6. Tables 3. References 7.

Key words: magnetite, solid solution decay, assemblage, alkaline complex, Southern Urals.

V.A. Popov, Institute of Mineralogy UB RAS, Miass, popov@mineralogy.ru

V.I. Popova, Institute of Mineralogy UB RAS, Miass;

I.A. Blinov, Institute of Mineralogy UB RAS, Miass

1. Bonshtedt-Kupletskaya E.M. (1951) [Mineralogy of alkaline pegmatites of the Vishnevye Mountains]. M., USSR Academy of Sciences, 175 p. (in Russian)
2. Chernysheva L.V. (1989) [Magnetite]. In: Typomorphism of minerals. Reference book. M., Nedra, 266–287. (in Russian)
3. Fominykh V.G., Svyazhin N.V. (1964) [On the composition of the accessory magnet and magnetites of the alkaline rocks of the Middle Urals]. Doklady Academii Nauk SSSR [Doklady Academy of Sciences USSR], 155(5), 1088– 1090. (in Russian)
4. Levin V.Ya., Levina I.A., Glebova Z.M., Dolzhanskaya T.Yu. (1987) [Mineralogy of carbonatite of the Buldym massif, Vishnevy Mountains]. Mineraly mestorozhdeniy Urala [Minerals of the deposits on Urals]. Sverdlovsk, UNC AN SSSR, 117–123. (in Russian)
5. Levin V.Ya., Ronenson, B.M., Samkov S.V., Levina I.A., Sergeev N. Kiselev A. P. (1997) [Alkaline-carbonatite complexes of the Urals]. Ekaterinburg, Uralgeolcom, 274 p. (in Russian)
6. Nishanbaev T.P., Rassomahin M.A., Blinov I.A., Popova V.I. (2016) [Minerals of the sodalite-cancrinite pegmatite in Vishnevogorsky miaskite massif (southern Urals)]. Mineralogiya, [Mineralogy], 2(3), 4–52. (in Russian)
7. Vorob′eva O.A. (1947) [The main structural features of alkaline intrusions of the Vishnevye Mountains]. Izvestiya AN SSSR, series geolog. [News AN UdSSR], (6), 69–77.