Espace Joseph-Monjaret

29ème bourse de collection de minéraux et fossiles

Visit the 29th minerals and fossils collection fair at Espace Joseph-Monjaret in Vaires-sur-Marne. Free entry, 9:00–18:00 on April 11–12, 2026, with geology enthusiasts showcasing minerals and fossils around the theme 'the mythical mines' and the masterworks of the trade.