Which trade term describes certain tourmalines known for their vivid colors?

The term that describes certain tourmalines known for their vivid colors is "Paraiba." This specific designation refers to a particular variety of tourmaline that originates from the Paraiba state in Brazil, although similar deposits have also been found in Nigeria and Mozambique. Paraiba tourmalines are celebrated for their vibrant colors, especially electric blues and greens, which are attributed to the presence of copper in their chemical composition. This vivid coloration distinguishes them from other tourmaline varieties and has made them highly sought after in the gemstone market.

While Brazilian, Rhodolite, and Nigerian could refer to other types of tourmalines or gemstones, they do not capture the same specific color characteristics associated with Paraiba tourmalines, thus not representing the vivid color trait as accurately.