Laveria Lamarmora on Google Maps.
The Lamarmora Washing Plant, situated on the cliffs of Nebida, a small village near Iglesias in the Sulcis-Iglesiente region, is one of Sardinia's most famous examples of industrial mining archaeology. A washing plant was a large factory where minerals extracted from mines, such as lead and zinc, were cleaned of dirt and mud, crushed and then transported to coastal ports to be loaded onto merchant vessels  as happened at nearby Porto Flavia, another magnificent example of mining archaeology. This cleaning and sorting work was performed by women and young people; after long, grueling days, they brought home meager wages that supplemented the earnings of the men working in the mines. The Lamarmora plant opened in 1897 and operated until 1930, after which it was gradually decommissioned. Today, the plant stands as a massive stone and brick structure featuring large brick arches that extend down to the sea; it is part of the Historical and Environmental Geo-Mining Park of Sardinia, recognized by UNESCO as a cultural and historical landmark of a bygone era. It is a fascinating destination visited annually by thousands of tourists from around the world who come to see the spectacular coastline of Sulcis-Iglesiente.
Useful links for more informations:
https://parcogeominerario.sardegna.it/laveria-la-marmora