Nephrite such as Lantian, Shaanxi, were also in great demand). There, white and greenish nephrite jade is found in small quarries and as pebbles and boulders in the rivers flowing from the Kuen-Lun mountain range northward into the Takla-Makan desert area. River jade collection was concentrated in the Yarkand, and the White Jade (Yurungkash) and Black Jade (Karakash) Rivers in Khotan. From the Kingdom of Khotan, on the southern leg of the Silk Road, yearly tribute payments consisting of the most precious white jade were made to the Chinese imperial court and there transformed into "objets d'art" by skilled artisans, as
Forms of juggling Some performers will mix various objects of widely differing weights, sizes, and shapes, requiring them to adjust their throwing force for each object. Instead of throwing balls, a juggler may roll them over the hands and body. Usually “crystal” balls (actually acrylic or plastic) are used. There are two distinct forms. A. Rolling one or two balls all over the hands, arms and body. B. Controlling three to eight balls, revolving them in stacks in the palms of the hands. Both forms often use the idea of "isolation". The impression is given of one ball being fixed in space and