In the early 14th century mass-production of fine, translucent, blue and white porcelain started at Jingdezhen, sometimes called the porcelain capital of China. This development was due to the combination of Chinese techniques and Islamic trade.[4] The new ware was made possible by the export of cobalt from Persia (called Huihui qing, 回回青, "Islamic blue"), combined with the translucent white quality of Chinese porcelain.[4] Cobalt blue was considered as a precious commodity, with a value about twice that of gold.[4] Motifs also draw inspiration from Islamic decorations.[4] A large portion of these blue-and-white wares was then shipped to Southwest-Asian markets through the Muslim traders based in Guangzhou