Arsenopyrite is an iron arsenic sulfide mineral valued by mineral collectors for its distinctive silvery-white coloration, metallic luster, and characteristic monoclinic crystal forms. This dense sulfide mineral typically forms elongated crystals or columnar aggregates and is important both as a mineral specimen and as an indicator of precious metal mineralization.Arsenopyrite deposits occur worldwide in hydrothermal veins, pegmatites, and contact metamorphic zones associated with gold, silver, and other ore deposits. Notable sources include Peru, Canada, Sweden, Russia, and various other countries. This mineral frequently occurs with other sulfides, often associated with precious metal ore deposits.Explore our arsenopyrite collection featuring well-formed crystals from worldwide mineralization zones. Our specimens showcase the distinctive silvery-white color and crystallography of this important sulfide mineral. Browse arsenopyrite selections and add these metallic sulfides to your ore mineral collection.