Jade Jade Jade refers to an ornamental mineral, mostly known for its green varieties. It can refer to either of two different minerals: nephrite, a silicate of calcium and magnesium, or jadeite, a silicate of sodium and aluminium. Jade is featured prominently in ancient Asian art, as well as having an important place in many other cultures. The English word "jade" is derived (via French "l'ejade" and Latin "ilia" "flanks, kidney area") from the Spanish term "piedra de ijada" (first recorded in 1565) or "loin stone", from its reputed efficacy in curing ailments of the loins and kidneys. "Nephrite" is derived
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