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Help Req: Pickling 925 silver ring with stone



 
 
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  #1  
Old January 17th 04, 09:03 PM
mark
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Default Help Req: Pickling 925 silver ring with stone

can anyone help
is it possible to pickle a ring set with a garnet stone
set in 22ct gold on a 925 silver ring
as I like the white look of silver after it has been pickled?
if so are there any stone's that can not be treated this way
many thanks

Mark



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  #2  
Old January 18th 04, 07:29 PM
NE333RO
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can anyone help
is it possible to pickle a ring set with a garnet stone
set in 22ct gold on a 925 silver ring
as I like the white look of silver after it has been pickled?


Yes, just so long as you don't do it while it's hot.

if so are there any stone's that can not be treated this way
many thanks


Yes, any number of them. Just a couple off the top of my head would =
be
torquoise and coral.
  #3  
Old January 18th 04, 08:57 PM
Peter W. Rowe
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On Sat, 17 Jan 2004 12:04:32 -0800, in rec.crafts.jewelry "mark"
wrote:

can anyone help
is it possible to pickle a ring set with a garnet stone
set in 22ct gold on a 925 silver ring
as I like the white look of silver after it has been pickled?
if so are there any stone's that can not be treated this way
many thanks

Mark



Hi Mark. I tried to send you the following reply via email. It bounced =
back as
undeliverable. If that email address you list is valid, you may wish to =
check
with your ISP as to why it bounced.

anyway...

Garnet will not be harmed by pickle. Some stones, though, are. This =
would
include peridot, which is unusual in the realm of what's normally =
facetted, in
that it is sensative to acids. Most other transparent stones are OK. Of=
the
other stones that cannot go in the pickle, it's usually the materials =
that are
some form of carbonate, such as calcites (things like marble, or pearls =
or shell
of any type,or similar acid sensative stones like rhodochrosite, =
malechite,
lapis lazuli, turqoise, etc. =20

Note that pickling itself won't change the silver's look, if it starts =
out clean
and bright. The matte white look you're probably referring to occurs =
after
soldering, when the silver has been oxidized to a black or dark grey dull
surface. The pickle removes the copper oxide, leaving the metal white, =
and the
matte surface that remains is because the oxidation that took place =
disrupted
the polished surface. If you pickle clean silver, it stay's that way, =
and
changes little at all.

Also, note that pickle, while it removes the dark oxides resulting from =
heat, to
leave that matte white look, usually has little effect on the dark =
antiquing one
finds on silver that's been sitting around, or that has been applied to =
finsihed
silver chemically. THAT black is not an oxide, but rather sulphides, and=
they
are not affected much by acid pickles.

In short, getting that matte white look on finished silver jewelry, =
without
being able to again heat it and oxidize it, is rather difficult. The =
closest
you're likely to get is a sandblast or bead blast finish, which would =
require
you to mask off the stone, and if you don't want the gold also blasted, =
then it
too. The closest I can actually suggest would be silver electroplating. =
If you
use a non-brightened silver plating solution, and leave it in for a =
while, the
surface will become much like that matte white you get from pickling. =
You'll
need to mask off any gold areas you don't want plated. Silver plating
solutions won't hurt your garnet, though if it's been glued in, the glue =
might
be degraded. I doubt that's the case, however.=20

If all you wish is nice clean white silver without antiquing, of course, =
any
black that's there is easily enough polished off, or if it's in recessed =
areas,
commercial tarnish removers such as "tarnex" or the like, will do the =
job,
leaving you with a white surface. But it won't be that matte, very white=
color
of a newly pickled-after-soldering surface. It will just be silver, with
whatever polish or finish was already on it.

Hope that helps.

Peter Rowe

 




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