The Mineralogical Section, located in the atrium of Palazzo del Parco, inaugurated in 2005 and completely renovated in March 2011, displays a part of the De Cavero family collection.

The Collection, which belonged to the engineer De Cavero, a great expert in mineralogy, was acquired in the 1960's by the Municipal Administration of Diano Marina.

After a first exhibition in a hall of the Municipality, thanks to the Mayor Ettore Carcheri and the Municipal Secretary, Terenzio Rossi, the Collection was placed, in special windows, in the middle schools of Via Biancheri, where it remained until 1971.

After various events, in 2005 the minerals were exhibited again in the renovated Palazzo del Parco.

In the rich collection, which totals more than 250 pieces, there are numerous examples of pyrite, - in its many variations, cubic, large crystals, iridescent, brilliant -, chalk samples, calcite, purple rock salt, limonite, fluorite, azurite , celestine, aragonite, amethyst, lapis lazuli, quartz, galene, sulfur and oligists.

The minerals come from localities of Liguria as Chiavari and Imperia Oneglia, from many Italian regions, Piedmont, Lombardy, Trentino Alto Adige, Emilia Romagna, Tuscany, Campania, Sicily, Sardinia, and some foreign countries, Switzerland, Brazil, Uruguay, Madagascar and South Africa.

In recent years, the Collection has been joined by other minerals (arsenic, pyrolusite, pyrrotine, realgas) donated by some individuals.