Metallic microspherules in carbonatites of the Southern Urals
Journal: Vestnik of Institute of Geology of Komi Science Center of Ural Branch RAS
Year: 2018

The first data on findings of small magnetic microspherules in calcite and dolomite carbonatites of the Southern Urals (Ilmeny Mountains) are given. The composition of the microspherules is predominantly ferrous with a small admixture of manganese. Their diameter does not exceed 1 mm. Their form is spherical or slightly elongated, sometimes hollow inside. The surface of the microspherules is smooth shiny, rarely matte, sometimes trickle in the crust. The inner structure of the microspherules is