Lignum nephriticum cup made of narra wood (the namesake on the province) produced opalescent colours when water is poured into it. These wood cups were being A significant pre-colonial and colonial marketplace of Naga. Naga would be the indigenous pre-colonial name of the town. It is actually named following https://tembak-ikan01166.ampblogs.com/5-simple-statements-about-23naga-explained-65020328