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
The Continuity of Life Forms The Continuity of Life Forms The Continuity of Life Forms is a mosaic by Willard Martin, installed at the Oregon Zoo in Portland, Oregon. "The Continuity of Life Forms" is a large mid-century modern mosaic and one of the earliest remaining works by local architect and artist Willard "Will" Martin, who also designed Pioneer Courthouse Square. It is made of 20 panels and measures approximately tall and wide. The work has been installed in two locations at the Oregon Zoo. According to the organization, "The Continuity of Life Forms" "[captures] a panoramic sense of history and being — the forces