• Origin : Lipari, Iles Éoliennes, Italia
• Dimensions: H : 6 ; l : 12 ; P : 13
• Collection: Coll. Lille Natural History Museum
• Credit: © Lucie Nicolas / Ecomusée de l’Avesnois
Volcanoes are arguably the largest natural glass furnaces in the world. Obsidian is a natural glass produced from the rapid cooling of silica-rich lava. It is easy to polish and makes a cutting edge when broken. Humans used obsidian to make axes, arrowheads and amulets 100,000 years ago.