SHOW:  Rings 303
Title:      Ring.
General:    This Ring Frog is made in Sterling Silver
Material:   Sterling Silver.
Gem:        
Method:     Cast.
Finish:     Polished.
Mechanics:  Carved. 
Designer:   W.van Heeckeren.
Craftsman:  W.van Heeckeren.

            To Order, Contact Me here.

Price:   AUS $ 350.00.










STERLING SILVER.

        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.

                                                    Wal.

CASTING.

            CASTING is a method by which molten metal is poured into a mould
                    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
                    molten metal may be poured.

                                                    Wal.