|1962||François Lehmann created the exhibition under the name ‘La journée des mines’ (mines day).|
|1964||The exhibition is ‘Cailloux’ (peebles) renamed.|
|1966||The exhibition is renamed again ‘International Minerals, Gems, Jewelry, Fossils and Meteorites exchange’ (Bourse Internationale aux Minéraux, Gemmes, Bijoux, Fossiles et Météorites) and is organized every year on the first Saturday and Sunday of July.|
|1973||François Lehmann organizes an exchange for Eastern European countries in Tržič, Slovenia, partner town with Sainte-Marie-aux-Mines.|
|1986||Friday becomes a professional day.|
|1992||The date of the exhibition is moved to the last weekend of June.|
|1993||The exhibition exceeds the 10’000 visitors milestone.|
|1997||A second professional day is added. The exhibition lasts then 4 days.|
|2001||The threshold of 20’000 visitors is reached.|
|2005||‘Gem Zone’ opening .|
|2009||The exhibition exceeds 25’000 visitors threshold.|
|2011||Takeover of the organization by the Mayor of Sainte-Marie-aux-Mines. The event is now called ‘Mineral & Gem’.|
|2012||The threshold of 30’000 visitors has been reached.|
Évènementiel en Val d’Argent (EVA), organizing structure of the event, offers regular innovations to develop Mineral & Gem and to bring more and more comfort, quality and choice. Many expansions are made for a more complete and specialized offer.
- → Increasing the number of parking spaces and shuttles.
- → Strengthening security standards.
- → Opening of a new prestige space at the swimming pool.
- → Opening to professionals already on Wednesday (early access).
- → Opening of the Osmont pavilion dedicated to collectible fossils.