Lipari (; ) is a comune including six of seven islands of the Aeolian Islands (Lipari, Vulcano, Panarea, Stromboli, Filicudi and Alicudi) and it is located in the Tyrrhenian Sea off the northern coast of Sicily, southern Italy; it is administratively part of the Metropolitan City of Messina. Its population is 12,821, but during the May to September tourist season, the total population may reach up to 20,000. It is also the name of the biggest island in the archipelago, where the main urban area of the comune is located. Geography Lipari Island is the largest of a chain of islands in a volcanic archipelago situated in between Vesuvius and Etna. The island has a surface area of 37.6 km2 and is 30 km from Sicily. Besides the main town, most of the year-round population resides in one of the four main villages: Pianoconte is almost due west across the island, Quattropani in the northwest, Acquacalda along the northern coast, whereas Canneto is on the eastern shore north of Lipari town. The highest point on the island is Monte Chirica at 602 m (1975 ft). Geology Geologists agree on the fact that Lipari (island) was created by a succession of four volcanic movements, the most important of which was the third one, presumably lasting from 20,000 BC to 13,000 BC. A further important phenomenon should have happened around 9000 BC. The last recorded eruptions occurred in the fifth century AD when airborne pumice, together with volcanic ash, covered the Roman villages of the island. The volcanoes are considered active, and steaming fumaroles and hydrothermal activity may still be seen. As a result of its volcanic origin, the island is covered with pumice and obsidian. Pumice mining has become a large industry on Lipari, and the pale pumice from Lipari is shipped worldwide. History Neolithic period In Neolithic times Lipari was, much like Sardinia, one of the few centres of trading in obsidian, a hard black volcanic glass prized by Neolithic peoples for the extremely sharp cutting edges that can be obtained. Lipari's history is rich in incidents as witnessed by the recent retrievals of several necropoli and other archaeological sites. Humans seem to have inhabited the island already in 5000 BC, though a local legend gives the eponymous name Liparus to the leader of a people coming from Campania. Bronze Age In the early Bronze Age, at the end of