Pyrite Crystals.
Mark Williamson/science Photo Library
Extremophile Environments
Nicolle Rager Fuller, National Science Foundation/science Photo Library
Pyrite Molecule
Adam Brackenbury/science Photo Library
Pyrite Molecule #1
Adam Brackenbury/science Photo Library
Iron And Sulphur #1
Martyn F. Chillmaid/science Photo Library
Lithium Batteries
Science Photo Library
Marcasite.
Geoff Kidd/science Photo Library
Pyrite
Frank Fox/science Photo Library