✨ What makes Pyrite special?
- Nature builds convincing metal cubes: sharp edges and parallel face striations can make untouched crystals appear almost engineered.
- One mineral records many environments: Pyrite forms in hydrothermal veins, oxygen-poor sediments, igneous rocks, metamorphic deposits and seafloor systems.
- Its chemistry has a structural twin: Pyrite and Marcasite share the formula FeS2, but their different atomic arrangements make them separate minerals.








