What is the name of the turquoise teacup?

Turquoise teacups refer to turquoise Ruyao teacups. The sky-blue Ruyao teacups need to be fired in the rainy season. The blue sky is like the blue sky when it clears up after a misty rain.

Ruyao, one of the five famous kilns in the Song Dynasty, was named because it was located in Ruzhou, Henan Province in the Song Dynasty. Today, it has been found in Qingliangsi Village, Daying Town, Baofeng County, Henan Province and Zhanggong Lane, Ruzhou City.