Long before sulfur entered medicine, industry or war, microorganisms helped create the yellow crystals displayed here. Contrary to popular belief, most native sulfur formed not in volcanoes but in sedimentary rocks through chemical processes involving bacteria. Over centuries, sulfur became essential to alchemy, gunpowder and, later, the manufacture of sulfuric acid, one of the foundations of modern chemistry. Although the specimens displayed here are native sulfur, Lyon’s nineteenth-century chemical industry relied largely on sulfur extracted from pyrite, an iron sulfide known as “fool’s gold”. Mined near Sain-Bel, west of the city, pyrite supplied the chemical works of Perrache, Pierre-Bénite and Saint-Fons, linking sulfur’s different mineral forms to the geological and industrial history of the Rhône.

Discover also

  • Passer d'un rêve à l'autre / To pass from one dream to another

Robert Filliou & George Brecht – Affiche pour Banqueroute, La Cédille qui Sourit, 1968

Museum of Contemporary Art of Lyon (macLyon)

Museum of Contemporary Art of Lyon (macLyon)

  • Passer d'un rêve à l'autre / To pass from one dream to another

Manon de Boer & Latifa Laâbissi – Persona, 2022

Museum of Contemporary Art of Lyon (macLyon)

  • Passer d'un rêve à l'autre / To pass from one dream to another

Jazz Money – garrandarang, 2021

Museum of Contemporary Art of Lyon (macLyon)

  • Passer d'un rêve à l'autre / To pass from one dream to another

Timo Hogan – Lake Baker, 2021

Museum of Contemporary Art of Lyon (macLyon)

  • Passer d'un rêve à l'autre / To pass from one dream to another

Birke Gorm – sit-up (sit-down), 2022 - ongoing

Museum of Contemporary Art of Lyon (macLyon)

  • Passer d'un rêve à l'autre / To pass from one dream to another

cyan – wesen 2 (les êtres / beings), 2026

Museum of Contemporary Art of Lyon (macLyon)

Museum of Contemporary Art of Lyon (macLyon)

  • Passer d'un rêve à l'autre / To pass from one dream to another

Mikala Dwyer – The Divisions, Subtractions and Additions: Séance for the Spiderworms, 2026

Museum of Contemporary Art of Lyon (macLyon)