Algebraic calculations for projective analysis of minerals, Schreinemakers analysis, Ultra-high temperature metamorphism and melting reactions, ultra-high pressure metamorphism, supersilicic minerals, Geothermometry and geobarometry, Characterisation of fluid composition through mineral equilibria. Inferring sequences of mineral assemblages, porphyroblast-matirx relations. Tectonothermal history of metamorphic terranes, construction and interpretation of metamorphic P-T-t paths, Kinetics of metamorphic reactions, diffusion controlled reaction and interface controlled reaction, geospeedometry.