SHOW: Necklaces 40

Title:      Necklace.
General:    This necklace and bracelet pair is cast in Sterling Silver and
            24K Hard Gold plated. The pair is designed so that the two may
            be combined to form a single long chain.
Material:   Sterling Silver, 24K Hard Gold.
Method:     Cast, 24K Hard Gold plated.
Finish:     Polished.
Mechanics:  The catch is a lever type.
Designer:   W.van Heeckeren.
Craftsman:  W.van Heeckeren.

Price:      AUS $ 1800.00.


        STERLING SILVER is a binary Silver alloy consisting of:
                        925 parts/1000 Pure Silver and
                        75 parts/1000 Pure Copper.
 Annealing temperature: 750 degrees Celsius.
   Melting Temperature: 950 degrees Celsius.



            CASTING is a method by which moulten metal is poured into a mold
                    in order to achieve the desired shape.  In the "Lost
                    Wax" method, an accurate wax model is made.  The wax
                    model is invested (put in a chrystobalite plaster),
                    after the investment has set, the wax is burned out in
                    a Kiln.  This leaves a negative cavity into which the
                    moulten metal may be poured.



               24 K GOLD is a pure precious metal:
                        1000 parts/1000 Pure GOLD.
 Annealing temperature: 800 degrees Celsius.
   Melting Temperature: 1062 degrees Celsius.



        Electro plating is a method of electrically depositing one
                        metal onto the surface of another metal.  An anode
                        of the metal to be deposited is suspended in a
                        suitable electrolyte bath, and the object to be
                        plated is similarly suspended as the cathode.  When
                        a rectified current is passed through the
                        electrolyte, ions from the anode pass to the
                        cathode, thus depositing metal onto the surface.
                            In the case of "Hard Gold Plating" the process
                        is very slow and the molecules deposited are extra
                        densely packed.