Lignum nephriticum cup fabricated from narra Wooden (the namesake in the province) generated opalescent shades when h2o is poured into it. These wooden cups ended up An important pre-colonial and colonial field of Naga. Naga may be the indigenous pre-colonial name of town. It's named following the narra tree https://lanegtgrd.webbuzzfeed.com/28666763/a-secret-weapon-for-23naga