The Middle Devonian Zavadov deposit of dolomites is located in Ternopol Region. The reserves of categories A--B-E, are 13.2 million tons and of category C2 26.8 million tons [i]. The dolomites are of monolithic, mixed, banded, brecciated, and honeycombed varieties [1,2].Samples of the dolomite were taken by the Pravoberezh Geological Exploration Expedition of Kiev GRP from the northern and northeastern walls of the pit from the trench in the 0-14.5-m range (samples Nos. 1-4) and from the cores of drilled holes (samples Nos. 5-17).The expedition established that the northern wall of the pit is made up of pure dolomites. In the drilled holes together with comparatively pure varieties quite thick layers (up to 8 m) of argillites and argillitelike clays are observed. In external form the dolomite of all of the samples is dense rock, not stratified, and from light-gray to dark-gray in color with bluish or yellowish hues.The chemical analysis of the raw dolomite is 16.98-21.15%* MgO, 0.20-4.77% R203, and 0.50-11.80% SiO2. Samples Nos. I, 5, 8, 9, 12, 15, and 16 type DSM-I, samples Nos. 2-4 and 7 type DSM-2, and sample No. ii type DSM-3 to Industry Standard 14-84--82 for raw metallurgical dolomite. As the result of higher SiO2 content the remaining samples are substandard raw material. *Here and subsequently weight % is given for the chemical composition and volume % for the mineral. 04 I 6,40 I 1,72 21,12 [ 1,90 I 0,49 19,02 I 2,65 I 1,00 18,02 [ 8,32 [ 3,45 18,88 I 1,65 I 1,35 16,94 I 1,88 I 0,77 Fe20a (20@
