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Mortar beds of three late 19th century sepulchral mosaics from two cemeteries in Prague, Czech Republic were investigated by SEM-EDS, DTG, XRD and FTIR. The materials had a very similar chemical and mineralogical composition – calcite, dolomite, portlandite and quartz were identified in all of them. Calcite was present both as the main constituent of the binder and in the form of angular grains. Moreover, the mortars contained 16 – 18 wt% oil, most probably linseed oil. Due to the rate of degradation and FTIR ...

The goal of this paper is to point out some of the mosaic monuments in the Czech Republic as a casuistry of rescue actions and restoration treatments as a response to frequent ignorance or in utmost cases the demolition of mosaic art. Despite a slowly increasing interest in mosaic heritage in recent years the full recognition of mosaics, including the ones from the communist era, as a valuable legacy of the past, still has not taken place. For this purpose the association Art a Craft Mozaika was founded in 2012. W...