There is a kind of glaze for the positive yellow, the color is like chicken oil, moist as jade, the appearance of the elegant and gorgeous, named chicken oil yellow, is the most valuable and most rare in the glaze.

Lapis lazuli, Pali veluriya or Sanskrit vulgar verulia translation. With aluminum and sodium silicate compounds fired into the glaze, common green and golden yellow two kinds, more added to the outer layer of clay, fired into tanks, pots, tiles and so on. Also refers to the glazed lamp base.