Cuprite

Though its appearance suggests it is a precious gem, this ore is actually a rare form of red translucent copper. Obwohl dieses Erz wie ein wertvoller Edelstein aussieht, handelt es sich doch bloß um eine seltene Form von durchsichtigem roten Kupfer. Though its appearance suggests it is a precious gem, this ore is actually a rare form of red translucent copper. Un morceau de minerai contenant du cuivre. 銅を含有する鉱石