Ontogenetic studies of a collection of corundum-bearing plagioclasites and glimmtrites from Rubinovy Log occurrence in the Ray-Iz massif, Polar Urals, indicate a magmatic model of formation of mineralization. The main morphological of feature is eutectic structure of rock-forming plagioclase, phlogopite, corundum, chromite, hercynite, and paragonite.

Fig. 10. Table 1. Bibl. 7. 

Key words: corundum-bearing plagioclasites and glimmerites, genesis, compromiss growth surfaces, ontogenesis, Ray-Iz, Polar Urals.

V.A. Popov, South Urals Federal Research Center of Mineralogy and Geoecology UB RAS, Institute of Mineralogy, 456317 Russia; popov@mineralogy.ru;

V.M. Vasilyev,  ИП «Васильев», г. Нижний Тагил, Свердловской обл., Россия;

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

 V.I. Popova, South Urals Federal Research Center of Mineralogy and Geoecology UB RAS, Institute of Mineralogy, 456317 Russia

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