Marble is made of limestone and when it comes in contact with the acid will ruin. There needs to be a Crystallizer to clean a marble with acid stains.

Common supermarket detergents can cause stains and spots on the porcelain tile. To clean these surfaces you need something more suitable.

5 effective ways to clean, remove stains, dirt or opaque marble polishing

Cleaning and restoration of a Carrara marble statue depicting the Madonna with Christ in a small church in the town of Prato; the statue made many years ago in a weatherproof yard, had visible biological incrostrazioni

How to clean outdoor furniture and wooden structures in the best and easiest way.