Note 57 — Chapter VII · THE PORCELAIN OF CHINA—(continued).
Reading edition
It will be observed that the turquoise blue and the green, both derived from copper, so happily combined in the wall-tiles of the Saracenic East, are in China rarely found united in the decoration of the same piece, and this arises from practical difficulties connected with the fluxes and the firing. At least the two colours are never successfully combined, for the attempt was apparently made in Ming times, and of this some instances are given in the following note. Indeed I should be inclined to regard such a combination on any piece as an evidence of early, probably of Ming, origin.