Nature creates the most beautiful shapes. Pyrite, also known as sulfur pyrite or iron pyrite as well as fool’s gold, is a very common mineral from the class of “sulfides and sulfosalts”.
Pyrite develops predominantly idiomorphic crystals in the form of cubes or pentagon dodecahedra. Octahedra and disdodecahedra are also common, as are combinations between these shapes.

With a Mohs hardness of 6 to 6.5 pyrite belongs to the hard minerals, quite tough guys.
As the title says, not all here are pyrites, there are other minerals present, such as mica and copper ore.