Pyrrhotite

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Clusters of pseudo-hexagonal pyrrhotite crystals measuring to 3.5 cm in size on matrix with needlelike crystals of quartz. In good condition. Dalnegorsk, originally named Tetyukhe until its renaming in 1972, was founded in the late 19th century after rich polymetallic deposits were discovered in the region. It rapidly developed into a major industrial center driven by the extraction of lead, zinc, and boron. Geologically, the area is renowned for its complex skarn ore deposits formed within a mountainous terrain shaped by intense Mesozoic and Cenozoic magmatic and tectonic activity. The unique interaction between intrusive igneous rocks and carbonate sequences created world-class mineral assemblages, making Dalnegorsk one of the most celebrated localities for mineralogy and economic geology in Russia.