Pyrite from Dal'negorsk, Far-Eastern Region, Russia

A very unique (and just pretty) specimen of irridescent drusy pyrite crystals profusely coating large rhombic calcite crystals up to 6.5 cm. in size.
Dimensions: 12 x 7.1 x 6.9 cm
Species: Pyrite, Calcite
Locality: Dal'negorsk, Far-Eastern Region, Russia