Investigation on the calcination behaviour of different proveniences dolomites

The dolomite mineral, magnesium and calcium carbonate (54,35% CaCO3 and 45,65% MgCO3), occurs in nature in some rocks, which contains it in different ratios; if the content of dolomite is of 90-100%, the name of the mineral is extended to the rock too. Romanian deposits are located in metamorphic and sedimentation formation of the Eastern and Meridional Carpathians, of the Western Mountains and of Dobrogea. The complete characterization of dolomites is determinant, regarding the establishment of a feasible direction for the processing and utilization of this resources with magnesium and calcium carbonates content. The paper presents some aspects concerning the dolomites from the Romanian deposits of Voslobeni, Magureni, Buru. The geographical localization and the geological description are summerized from the professional literature. The chemical composition, as well as some physical and mechanical properties were established by own contributions, both for raw dolomites and for their burning products. A comparative study including the dolomites of different proveniences was realised. The characterization of these dolomites is determining in order to establish practical applications for each of them.