Aim of the investigation was the fabrication of in green soda lime silicate glass embedded Ag nanoparticles with for nonlinear optical behaviour interesting sizes between 1...2 nm. Ag incorporation took place through a Ag+-Na+- low temperature ion exchange at 330°C. The Analysis of the involved transport and particles formation processes with a comprehensive methodical spectra (AAS, EDX, ESR, TEM, HRTEM, spectralphotometry und modelling) should enable to discribe the involved elementary processes of diffusion, reduction and particles formation. Ag incorporation is interpreted as reactive diffusion, that reveals through the staining in incompleted coloured samples an identificable reaction front, wich splits the glass in regions of different diffusive and relaxive behaviour. Involved elementary processes are apparently not separable and no hints of formation of isolated Ag0 through Ag reduction were found. The product of Ag reduction with Fe2+ was identified as colourless, diamagnetic, and probably amorphous subvalent precursors of silver nanoparticles. These transform near RF into Ag nanoparticles with time and depth independent size of about 1.5-2.0 nm. Ag nanoparticles grow after diminishing of RF at 500 h and form a depth dependent squared shaped size profil with a maximum size of 4.5 nm at the sample center after 600 h. Fe2+-oxidation happens only in incompleted coloured glass. After the Fe2+-oxidation a following relaxation of Fe3+ synchron to the formation of Ag nanoparticles was found. Modelling of redoxreaction between immovable and spatially separated reactants arises congruent results for the chemical standard kinetic and for diffusion influenced reaction kinetics. For Ag particle sizes clearly below 5 nm, wich are determined by TEM, differ the spectralphotometric absorption of surface plasmon resonance (SPR) and the theoretical expectations of Mie’s theory with a quasistatic electrongas limited of the Ag particle size for all three parameter (position, width and area). At constant Ag particle sizes appeared depth dependent positions and widths of the SPR-absorption for the Ag nanoparticles embedded in glass.