This precious raw material varies a lot in terms of colour and structure. Slim and broad quartz veins. Pores and deviations in colour result in a never recurring, unique marking. Little brush marks are very distinctive as this kind of rock is quite soft. At Willisau Switzerland, marble plates for the living area are generally protected by a resistent polyurethane-based D/D-lacquer.
Use a lintfree cloth such as a chamois leather or a sponge and warm water without any additions to clean the surface. Remove spots or rims of juice immediately with a moistened cloth. Do never use aggressive chemicals or furniture polishes!