冷金黄 (Leng Jin Huang) is a rare and precious stone found in the quartzite layers at the bottom of the Huanglong Mountain.
It exhibits an imperial color, earning it the nickname "Imperial Gold." The stone has a slight greenish tone and displays patches of oxidized rust, adding to its unique appearance.
It possesses a hard texture with good plasticity when moistened, and during the manufacturing process, it exhibits a strong sandy texture. Generally fired at temperatures around 1200-1230°C, it acquires a cool golden yellow hue after firing, characterized by pronounced granular texture and high purity. However, the surface may appear slightly dry.