What is glass?
Glass is a material consisting of silicon. For washbasin countertops glass sheets are thermoformed so as to become thicker and more resistant.
How to clean glass:
For cleaning, simply use a soft cloth and water or neutral liquid detergents.
Avoid using abrasives or products such as trichloroethylene, acetone and solvents in general.
Glass has a high resistance, but it can be scratched by materials with equal or higher hardness (diamond and hard stones, ceramic, tiles, plates, crystal).