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- From rogermoore435@yahoo.com Wed Nov 06 13:09:09 2002
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Date: Wed, 6 Nov 2002 13:09:09 -0800 (PST)
Subject: Re: [Colonial Numismatics] Re: XRF at C4
To: colonial-coins@yahoogroups.com
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From: Roger Moore <rogermoore435@yahoo.com>
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Scrubbing the whole coin would produce a more pleasing
overall effect. It will also greatly help in the
resale value of the coin when it gets slabbed.
However, on further thought, a better sample for
analysis could be obtained by taking a drilling from
the center of the coin (A core value, so to speak). I
will plan to bring a drill to C-4 for use by anyone
wishing to obtain true core values. Roger
--- "Clement V. Schettino (Clem)"
<CopperClem@attbi.com> wrote:
> Hey Roger,
>
> Are you suggesting the whole coin or just a couple
> of areas for
> testing? I suppose if I were to go with the Brillo
> pad I'd do the
> whole coin to keep the color somewhat consistent?
>
> Clem
>
>
>
> --- In colonial-coins@y..., Roger Moore
> <rogermoore435@y...> wrote:
> > I believe scrubbing with a Brillo pad would be in
> > order. Roger
> >
> >
> > --- "Clement V. Schettino (Clem)"
> > <CopperClem@a...> wrote:
> > > Hey Mike,
> > >
> > > Just exactly what do you mean by "clean"? I
> > > typically degrease/clean
> > > all my coppers with xylol (sp) then apply either
> > > "care" or "blue
> > > ribbon" to return a little life, then remove
> most of
> > > the care or BR
> > > leaving a fine coating behind for protection. Is
> > > that clean or should
> > > one remove that protective coating, once again
> > > applying xylol (sp),
> > > before subjecting to XRF?
> > >
> > > Thanks,
> > > Clem
> > >
> > >
> > >
> > > --- In colonial-coins@y..., "mike468hodder"
> > > <mhodder@t...> wrote:
> > > > When you test your coins at C4 using XRF, be
> sure
> > > to take multiple
> > > > readings on each coin, at different spots.
> Also,
> > > be sure the points
> > > > tested are clean. With coppers made of three
> or
> > > more different
> > > > elements segregation/surface enrichment can be
> > > problems.
> > > >
> > > > Just a word to the wise.
> > > >
> > > > Mike H
> > >
> > >
> >
> >
> > __________________________________________________
> > Do you Yahoo!?
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>
>
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