Guided tours of the Minerallium
The Minerallium, a permanent exhibition of the Roullier Endowment Fund, is opening its doors to the public for guided tours during the Easter break.
Take this opportunity to immerse yourself in the fascinating world of minerals, from the emergence of life on Earth to their use in agriculture!
Through a unique immersive experience into the depths of the Earth, come discover the little-known yet essential role of minerals—from the creation of our planet to their vital role in plant, animal, and ultimately human nutrition—across four spaces featuring numerous interactive exhibits.
The exhibition was conceived and created by Aude Planterose, a museum curator, and Benjamin Graindorge, a designer, with scientific collaboration from the National Museum of Natural History.
Additional information
- Free guided tours
- By reservation only
- Duration: 1 hour and 30 minutes
- Maximum of 15 participants per tour
- Accessible to people with limited mobility
- Recommended for children ages 10 and up.
A temporary exhibition on the theme of seaweed
Since January 15, 2026, the Roullier Endowment Fund has also been hosting a temporary exhibition in the building’s lobby dedicated to algae and their properties, titled “When Algae Touch Us.”
This exhibition highlights algae and their crucial importance in the fields of animal and human nutrition, for terrestrial and marine ecosystems, as well as the potential they offer in various industrial sectors that impact our daily lives.
Two artists from Saint-Malo are also presenting their works around the central structure of the exhibition: cyanotypes created using algae.
Visit the exhibition
The exhibition “When Seaweed Touches Us” will be open to the public for self-guided tours Monday through Friday from 10 a.m. to 12 p.m. and from 2 p.m. to 4 p.m. during the Easter school break, from April 13 to 24, 2026
