Carnelian

Carnelian is a variety of chalcedony, a mineral of the quartz family, known for its warm, reddish-orange colours. Its colour ranges from pale orange to deep red-brown due to iron oxide impurities. It forms in volcanic and sedimentary rocks and is often found as pebbles in riverbeds or rock formations. Significant sources of carnelian include India, Brazil, and parts of Africa.