Here's a video I found. I know someone posted an excellent one here sometime in the past. Near the end of the video he mentions that proof coins...
Don't, it will still scratch your coins.
Reminds me somewhat of calcium carbonate which we now as crumbly chalk or as flaky limestone, but which is also marble.
I might consider one of these bags, my wife couldn't swing it too well to hit me : - )
And a horribly hard lesson for me!
The coin itself appears to be an attractive coin and $40 is not an outrageous sum. You could keep it in the holder, you could crack it out and...
No more a catalyst than eggs are in making a cake. The thiourea is a reactant that causes the silver oxide or silver sulfide to revert to silver...
I agree with you, that is why I would like to see what @BadThad has to say about the matter.
Sorry, not a catalyst either, just one of the ingredients that go to making up the witch's brew that constitutes a reaction.
DANG!!!
Like this post. Cleaning (or conserving, if cleaning offends your sensibilities) by many means should be acceptable, except that the clean,...
Have to get a chuckle from this one. One of the labs I teach asks the students to rank elements they are examining as dull or lustrous. I am...
By any chemical definition I know of, thiourea is NOT acid. Thiourea is commonly used in an acidic solution though.
Not sure if I totally agree with the wikipedia article, especially when the same article recommends (and I quote): "Internal treatment[edit] If...
Not sure if I would call the green patina verdigris. Verdigris will spread and eat up the coin, but AFAIK the green patina won't. Perhaps...
WC Fields... "I'm very fond of children - girl children, around [age] 18 or 20." (from The Bank Dick )
I look forward to seeing your Icelandic coins again. Welcome back!
Temp got close to 90 here today.
Yeah, my daughter in Portland, OR has a CA phone #.
Thanks for all the replies. I live in Camarillo and according to the Craigslist listing, he says he is in Ojai, which is 10-15 miles away, but...
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