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
Two Rock , north-northeast of Fairy Castle on the slope leading to Three Rock. Two Rock can be reached via the Coillte-owned forest recreation areas of Ticknock, Kilmashogue and Tibradden, which are managed by the Dublin Mountains Partnership. The mountain is traversed by the Dublin Mountains Way hiking trail that runs between Shankill and Tallaght while the Wicklow Way hiking trail runs to the west of the summit. Two Rock Two Rock (; archaic: Black Mountain; "" ()) is a mountain in Dún Laoghaire–Rathdown, Ireland. It is high and is the 382nd highest mountain in Ireland. It is the highest point of