This pyrrhotite is from Dal’negorsk in the Kavalerovo Mining District, Primorskiy Kray, Far Eastern Region, Russia. This region contains nine known deposits in which 190 minerals including pyrrhotite can be found. It is a sulfide containing the elements Fe and S. This specimen consists of a mixed matrix of quartz and other sulfide crystals that is covered on the display side with small skeletal sphalerite crystals, needle quartz crystals and bronze pyrrhotite crystals. They have a sub-metallic to metallic luster, hexagonal habits and form stacked “coin” clusters. The principle cluster is 19 mm across. The piece measures 2 1/2 x 2 x 1 1/2 inches or 63 x 50 x 38 mm as displayed in photo 1.