It all boils down to how its molecules are arranged in three dimensions. Pyrite, chemically known as iron sulfide (FeS₂), is one of Earth’s most common sulfide minerals. Miners and prospectors ...

The Perikon Detector contact is between crystals of chalco-pyrites and zincite; in the Ferron Detector between a crystal of iron pyrites and a metal point; in the Silicon Detector between the ...