Sorry, I gave the wrong link for orichalcum provincial coin, Here's
the correct link:
--- In Uncleanedcoins@yahoogroups.com
, "Glenn Simonelli"
> Here are pictures of 5 diferent coins from my web site. This
> first coin has a beautiful blue-green patina:
> This next coin has a more common brownish-black patina. On this
> coin the patina is rather thick and clearly obscuring some finer
> details a little bit:
> This next coin has had its patina removed somehow. Notice the
> bronze color color and the slight porosity. This is typical of bronze
> coins that have been cleaned down to bare metal:
> This coin is a provincial coin made of orichalcum, a brass-like
> composite of copper and zinc. The porosity and the bright golden color
> is the give-away that this coin has had most of its patina stripped
> Finally, here is a coin that has been just slightly overcleaned.
> Most of the original patina is intact, but you can see where the
> original metal is peaking through on the highest parts of the design:
> I hope this is helpful to you.
> Glenn Simonelli
> --- In Uncleanedcoins@yahoogroups.com, "Dennis P. Skea" <dpskea@>
> > To the list,
> > I'm really new at this. I have several coins soaking in
> > distilled water, and a couple each in other solutions (valve oil,
> > olive oil, dish liquid) and I am working on 2 coins now.
> > Is there any place that may have examples of patina, so I can
> > figure out when I have reached it. I am resigned to the learning
> > curve, and expect to ruin a couple (at least) in the beginning, but
> > the line between crud/dirt and patina is one I really cannot recognize
> > yet.
> > I have noticed that the Albany (NY) coin club has a bi-weekly
> > meet, and they note ancients as a specialty, so I'll probably drive up
> > some weekend. Only 1 1/2 hrs away up the thruway.
> > But before that, point me to any pictures you may know of on
> the net.
> > Thanks
> > Codekeyguy