There are gases in the atmosphere other than nitrogen, oxygen, water vapor, argon and carbon dioxide, in trace amounts. Gold could conceivably...
If anyone else is as fascinated by ancient gold refining as I am, some additional things to look at are "gold parting" and "cementation". Silver...
Do any ancients ever show the same kind of discoloration, namely red spots and splotches, as is showing up on contemporary bullion coins? That's a...
That didn't sound right chemically, but I don't want to disagree with Doug unless I've checked my facts carefully. Silver "cleaning" solutions...
The latest report is a mintage of 500,000 and a release date of "this fall":...
No reason, from a coin person's point of view. This is something you do in order to play mad scientist, or to baffle a machinist (I sent one a...
Can anyone with a Coin World subscription pass along exactly what the new release schedule is? By the way, is it normal for the Mint to be this...
The Perth Mint makes their money by selling gold. They have no incentive to keep a stockpile that would make them the largest gold holder in the...
Bron Suchecki is one of the people I listen to closely.
Iridium is a pretty cool metal (though not for investment). It won't dissolve even in aqua regia and it takes an electron beam furnace to melt it.
Another supplier, advertising various forms (disk, bar, ingot): http://www.americanelements.com/rhm.html http://www.americanelements.com/rhmi.html...
The law you're thinking of forbids "fraudulently" altering coins. The Mint has confirmed that the penny-stretching machines at tourist traps are...
You can get more of an idea of liquidity by checking eBay for closed sales of rhodium coins. Apparently there is a resale market, but not a fast...
Products from Intercept Shield are designed to absorb sulfur before it can react with your coins. Haven't heard of sulfur in Ziplocs, but there is...
31 U.S.C. 5111(d) authorizes the Treasury Department to forbid melting or exporting US coins, which they have done for pennies and nickels as of 2006.
Preserve wealth under what conditions? And with what reliability? You can lose money in silver if industrial demand drops. Holding silver through...
Are most coin dealer self-taught?
Hi, Doug, Didn't want to clutter the "Investment" thread with this, because it's off topic. The equivalent to the house advantage for coins is...
Subtleties of the futures market: http://www.financialsense.com/fsu/editorials/tustain/2010/0421.html, skip the first 3/4 and look at the end....
One problem is that there's a crowd of precious metals enthusiasts who treat it like a religion. They say the same things over and over, without...
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