Like nickel silver, Tibetan and/or tribal silver are base metal alloys that are only silver in appearance. Contents of the alloys vary tremendously and may not even contain any silver. Some imports from exotic areas contain dangerous metals such as lead; buyer beware. Questi gioielli dovrebbero essere acquistati con cautela e mai dati ai bambini. I pezzi tribali possono essere piuttosto belli, so purchase for the value of the piece and design rather than the value of the material.