This color is accomplished by burning the metal to the point that it releases its impurities and self colorizes. This patina occurs from within, no chemical was added to the surface.
Black Sterling is achieved by the oxidation of sterling silver. This blackened state will fade depending on skin type and sometimes quite quickly, the faded look can be considered an enhancement but we will be happy to help teach you how to re-oxidize your pieces if you prefer the pure black finish. Additionally, please note that Black Sterling tends to look darker in photograph then in person.
Found in Massachusetts with possible tribe relationship to: Mohawk, Mahegan, Pocumtuc, Nipmuc, Pequot, Wampanoag or Norwottuck.