- Pyrite after Pyrrhotite
- Miniature, 5.6 x 4.1 x 1.5 cm
- Nikolaivskiy Mine, Dal'Negorsk, Russia
Video on Instagram
A sparkling, yellow druse of pyrite has replaced parallel growth, tabular crystals of what was once pyrrhotite that reached up to 3 cm. Tarnishing has added color variation to the pyrite crystals.