Skarns in Slovakia has been studied only on the basis of petrographic methods and optical characteristics. This work is devoted to the detailed study of Ca and Mg skarns from the Malé Karpaty and Štiavnicka stratovulcano area, with emphasis on the detailed description of individual mineral phases and their chemical composition. Using a several analytical methods, such as electron microalanalysis, optical or Raman spectroscopy, it was possible to identify the rich mineral paragenezis of skarns from the locations of Veľká Baňa, Záhorská Bystrica, Železná studnička and Vysoká - Zlatno. The Minerals of the Malé Karpaty crystalline can be divided into two groups. First is represented by older primary minerals, which predominantly represent diopside, grossular, epidote group minerals and vesuvianite. The second group represents the secondary retrograde pumpellyit and prehnit, minerals whose origin is closely related to the pumpellyte-prehnite metamorphic phase. In the Bratislava Massif, the most dominant mineral type is Al pumpellyite, which was primarily formed in a lithological environment without quartz at the expense of diopside, amphibol, biotite and garnet. The research of Mg skarns in the Štiavnica stratovolcano revealed a rare occurrence of boron minerals, szabelyite and ludwigite. The minerals of the ludwigite group can be divided into four phases. The Ti-Al-rich oldest ludwigit (type 1), the Al-rich type 2, the Fe-rich ludwigut (type 3) and the youngest type 4, represent Fe-rich veins of ludvigit that overtake the original mineral. The analysis of the chemical composition of the ludwigit mineral group revealed increased levels of Ti and Al. The concentration of titanium is set to 17.4 wt% TiO2 (≤0.40 apfu), which corresponds to ≤79 mol% azoproite end member [Mg2(Mg0.5Ti0.5)O2(BO3)]. The concentration of Al reaches 14.4 wt% Al2O3 (0.53 apfu), which corresponds to 53 mol% 'aluminoludwigite', an unconverted mineral of the ludwigite group with Mg2AlO2 (BO3) of the end-region formula. The contrentation of Ti and Al is significant worldwide. These concentrations are namely the highest ever recorded in this mineral group.