SHOW: Necklaces 59

Title:      Necklace.
General:    This Sterling Silver necklace is Hand Forged, and set with a
            Ruby rod.
Material:   Sterling Silver.
Gem:        Synthetic Ruby Rod.
Method:     Hand Forged.
Finish:     Polished.
Designer:   W.van Heeckeren.
Craftsman:  W.van Heeckeren.

Price:      AUS $ 5500.00.


        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.


Technical Data for SYNTHETIC.

         The  Synthetic stones are commonly of the corundum (Saphire)type
                        or  the  Spinel  type.  These are grown inside a
                        flame,   from   their   relevant   chemicals.   The
                        resulting  stone  is  termed  a "BOULE".  In recent
                        years more stones are simulated by laboratory grown
                        "NATURAL"  crystals.  In other words they are grown
                        from  the  same  chemicals  as nature uses, and are
                        therefore   almost  impossible  to  tell  from  the
                        natural stones.

                        Cubic zirconia comes in so many colours that many
                        stones  are  now  also  imitated by this synthetic.
                        You  can  usually  tell  because  they are just too


Technical Data for RUBY.

name:                   RUBY
colour:                 Varying red
colour of streak:       White
mohs hardness:          9
specific gravity:       3.97-4.05
cleavage:               None
fracture:               Small conchical, uneven, splintery, brittle
crystal system:         Hexagonal ( trigonal ); hexagonal prisms or tablets,
chemical composition:   AI203, alumiinium oxide
transparency:           Opaque, translucent, transparent
refractive index:       1.766 - 1.774
double refraction:      0.008
dispersion:             0.018
pleochroism:            Strong; yellow-red, deep ruby-red
absorption spectrum:    6942, 6928,66680,6592, 6100-5000, 4765, 4750, 4685
fluorescence:           Strong; ruby-red


    FORGING is a method of deforming metal with a hammer on an anvil.
                In the case of Sterling Silver and the Karat Golds, this
                must be done COLD!  If a hot forging is attempted the
                precious metals will just crumble.  In their PURE form
                Silver and Gold will allow HOT forging, but there is no
                benefit to be gained.