Pyrite

Crystal size: 5 mm. Floaters of pyrite exhibiting various crystal shapes. Cubic crystals composed of (100) faces.

Recovered from a sericitization alteration zone associated with a hydrothermal deposit along a fracture zone near the Median Tectonic Line. Formed in the middle Miocene (15 Ma),

Pyrite from this location was described in 1901.

Crystal size: 5 mm. A cube-based crystal with (210) faces on edges of a (100) cube.

Crystal size: 5 mm. A dodecahedral crystal composed of (210) faces. A (210) face are called as a pyritehedral face.

Crystal size: 7 mm. A dodecahedron-based crystal with (111) faces on corners of a (210) octahedron. Th lower 2 faces and the upper center face are (210), and the upper right and the upper left faces are (111).

Crystal size: 10 mm. A cube-based crystal with (210) faces on edges and (111) faces on corners of a (100) cube.

Crystal size: 5 mm. A cube-based crystal with (210) faces on edges and (111) faces on corners of a (100) cube. (100) faces are small.

Crystal size: 5 mm. A cube-based crystal with (210) faces on edges and (111) faces on corners of a (100) cube. There are no (100) faces.

Crystal size: 5 mm. A octahedron composed of (111) faces.

Crystal size: 3 mm. A octahedron-based tabular crystal. A pair of (111) faces is larger than other (111) faces.

Left group: 10 mm. Twins of cubic crystals. The group is fomed by repeated twins.