Green turquoise with wonderful silver findings.Turquoise was used for artistic carving and jewelry, which has always been popular in the Orient. In China, Turquoise dates to the thirteenth century A.D. Although most brought from trade with the Persians, Turks, Tibetans, and the Mongols. Tibet had its own source of turquoise usually a green cast, very hard stone with significant amount of spider webbing. The Tibetans highly revered turquoise and was used in many areas as currency. Ancient doctors thought turquoise prevented injury through accident, and would place perfect stones over the eyes to prevent blindness. They also ground it into a powder to cure stomach disorders, internal bleeding, ailments of the hip and bites and stings. Turquoise is believed to protect the wearer from danger. In various countries, it is believed to fade when illness or danger is near. Another belief is that a fading stone indicates a lover's faithlessness or a friend's disaffection. Turquoise is the birthstone for the month of December.