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
Empire Nephrite (Fabergé egg) some Fabergé researchers were of the mistaken opinion that this egg featured a portrait medallion of Alexander III of Russia, though the original bill did not refer to a portrait of Alexander III. This mistake was result of a misinterpretation of the Moscow Armory Chamber valuables selection list. This list noted an "Egg from nephrite, on a golden base, and with portrait of the Emperor Alexander III in a medallion". Because of this, many researchers were certain that the 1902 Imperial egg featured an Alexander III portrait, though there is no evidence to support this. However, in 2015, during research