Throughout my career, I have studied all aspects of fluid and melt inclusions in minerals and have used Raman micro-spectrometry for the characterization of inclusions and other geomaterials. I credited for the development a Raman spectroscopic method for the determination of water (ppm to tens of % (g/g) level) in glasses and melt inclusions. My strong interest in the genesis of pegmatites using melt and fluid inclusions started in 1968. The behavior of supercritical fluids at magmatic PT-conditions and the crossover between two different dynamic regimes are now at the focus of my research. Scientific interests: Fluid and melt inclusions in petrology and ore deposit research Application of the Raman spectroscopy in the geosciences Genesis of granite-pegmatites and the meaning of water, boron, fluorine, chlorine, phosphorus, beryllium, and the alkali elements, and the significance of alkali carbonate-rich melts and fluids Melt-melt-fluid immiscibility in nature Determination of the water content of natural magmatic melts Project: The relationship between granites and its pegmatites