Marwoolus is a patented composite material made from marble powder, wool and a bi-component binder. The result is a material that resembles marble with its typical streaks, created by the wool. The material is water-resistant and slightly translucent.

The material was inspired by two towns in which designer Marco Guazzini grew up. Prato is textile industry town, while Pietrasanta is a marble town. To make Marwoolus, the waste materials from both industry are used. The natural colour of the marble and wool make each product unique.

The handmade material is for indoor environments only, and can be applied as, for instance, wall coating or table tops.