Miassite sur Wikipedia, c'est un minéral qu'on trouve dans la nature fait de rhodium et Souffre. Et donc il aurait des propriétés de Superconductor.
This is where miassite comes in. Despite its low critical temperature of -267.75°C (-449.95°F), it shares the unconventional properties of superconductors with a higher critical temperature and researchers hope to use it to better understand the origin of unconventional superconductivity. The mineral has a complex chemical formula with 17 atoms of rhodium and 15 of sulfur (Rh17S15).