It is almost assuredly yellow brass produced from the reaction of zinc dust and the copper layer and heat. A favorite chem lab experiment....
Various stores and ebay suppliers have various types. Here is one http://www.amazon.com/REPLICA-Indian-Penny-Cent-Large/dp/B000LKXTX4 They can...
Since the clad layer is 75% copper, 25% nickel like the Jefferson 5 cent CuNi ( except for wartime silver), find a similar crudy jefferson and...
Just finished posting this in another related type of thread and still had it on the clipboard. It also shows the "silver" zinc ones also....
I enjoyed seeing them, especially the Mexico coins. Jim
Go down to the section "How does it work" to see ways to change the surface of a cent. This experiment is a classic and is done in thousands of...
I forget the tm name of the item, but I always called them press-on-letters. They were printed on a plastic fim carrier, and one would align the...
At over $60 per gallon Plus shipping for 90% fuel grade hydrogen peroxide, it seems you should be investing in it rather than silver for the...
It is the mention of diamond rough that caught my eye. Unless the laws have changed, possession of diamond rough in that part of Africa is...
They will be numb from the cold, so do not worry :D
Next time try putting the tube and coins in a ziplock bag and put into the freezer for a while. Then take out and put the tube into a container of...
Compare the color to the photo in this url in the part "How it works" http://www.stevespanglerscience.com/experiment/gold-pennies To me the...
If people don't read the rules they miss among others #1 from Doug. Read more: http://www.cointalk.com/t34131/ [/COLOR][/LEFT]
The tolerances for a 3.11 gram 1974 cent is +/- 0.13 grams so a minimum weight could be 2.98 grams to max of 3.24 grams. Although the weight...
It actually is not a doubled die, it is die deterioration of that part of the date. Jim
I also am waiting to see what happens with Greece. The current news seems rather positive that the private bond holders will accept the 50-60 %...
This doesn't help on the moisture damage, but it would help in removing reactive contaminants from the air such as sulfur compounds. Also you...
I certainly do not think that the increase in PM ( even over the past decade) has been due to supply/demand. The PM "herd" drones on and on also....
And since the advent of Precious metal ETFs, and the leverage that comes with them on the actual commodity futures, and thus the commodities...
Technology giveth, and technolgy taketh away. 50 years from now, there may not be a need for silver any longer.
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