Accessory ilmenorutile of diamondiferous middledevonian deposits of South Timan

The article presents à mineralogical and geochemical characteristic of accessory ilmenorutile diamondiferous deposits of South Timan. According to the results of the micrologging study the author comes to the conclusion, that the rocks of Asyvvoj can be related to secondary deposits. Ilmenorutile formation passed in different conditions, basically it is connected with granitice pegmatites, but there are some admixture elements connected with carbonatites.