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
Ornamental turning Lukin "Ornamental Turning", by T D Walshaw, and "Holtzapffel Volume VI" by John F.Edwards, 2013. Reprints of all these books are usually obtainable. The Society of Ornamental Turners was founded in 1948 with the object to encourage, develop and promote the study and practice of the art and science of ornamental turning. Its members meet quarterly in London to display examples of their work, share their experiences and attend a lecture or demonstration. Seminars and outings to places of interest are also arranged. A bulletin containing articles on all aspects of ornamental turning and news of the society is published