The special gemstone: Atacama opal
Atacama Opal is an Opalite-Chrysocoll-Chalcedony mixture whose intense green-blue color is caused by Copper. Where the rough is found (near Copiapó and Paipote in the Región de Atacama, northern Chile), the stone is referred to as Atacama opalite or Atacama opalite; this name has also become established in the international ...