Hematite

Hematite, an iron oxide mineral (Fe₂O₃), is a popular gemstone prized for its rich, dark metallic luster.  While often appearing black or dark grey, it can exhibit beautiful iridescent or silvery flashes depending on the light.  Hematite's hardness makes it a durable choice for jewelry. It is sourced globally, with significant deposits in Brazil, Australia, Russia, the United States (particularly the Lake Superior region), and many other countries across Africa, Asia, and Europe.