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
Rock of Ages Light this light is unusual. The caisson which forms the first level is 25 feet high and contains a two-story cellar. From the bedrock up, a central steel core runs through the center of the structure and is its main support. Although "unique, . . . it bears some resemblance to the 1893 Chicago Harbor Light." Part of the reason for the closing of the Rock Harbor Light station was the 1875 establishment of the Isle Royale Light on Menagerie Island. Shortly thereafter, a third light station was erected in the Isle Royale area -- Passage Island Light lit on July