OOOHHH yes very much so that my heart bleeds If your going to make up stories at least provide some sort of evidence to what your talking about Instead of dribble coming from your keyboard :lol:
Stories?? Are you dumb ??? Check the photos your self!!!! The items have been tested, all evidence there Found grease fingers marks all over, something to your liking You either Blind or ignorance , something you want to argue in thin air...
I've seen a 1oz gold coin that was XRF tested and passed by a dealer that later turned out to be a fake. There are some really good fakes out there.
I saw your pics. I was referring to a fake gold coin that was not in packaging. I've heard that 60 microns gold plating on tungsten will usually pass the XRF test, but the XRF may pick up the tungsten if left on longer to get better penetration.
^^^ How long is long enough then on an XRF? Even losing 50% of a supposedly gold planchet is significant.
Radio waves on earth almost go at the speed of light in vacuum. There's no way that waiting "longer" would change results or allow for deeper penetration.
Ok, I'll be more accurate, then: electromagnetic waves. Fact is, they are fast. Very fast. I.e. As far as human's perception goes, the reading is instantaneous. Longer exposure will not change the reading.
I'm just going by what I've noticed when someone else was using one, and their comments on the readings, but maybe I misunderstood what was happening.
Apologies are due. I spent a bit more time on a few xrf producers' web sites and yes, depending on the model, exposure time can influence accuracy. This is not due to additional time required for penetration (that's instantaneous) but to the sensitivity of the detector.
You poo poo'd my prior post here which was 100% good advice. It is much easier to make real looking fake gold bars than gold coins (especially when the gold bar is in plastic). It is very difficult to make fakes of gov made bullion GOLD coins that weigh right and are the right dimensions. I would opine that such don't even exist. The best counterfeits of rare coins are where said counterfeits are made with real gold and in the right percentage, such as fakes of old pre 33 US gold coins, where such a rare coin might be worth $10K or more so it's worth it to make the fakes out of real gold to try and pass on to someone. If we are talking about fake Krugs, Maples, Eagles, etc, the fakes are EASY to spot if you have any coin experience. I have seen fake Maples and Krugs over the years and none of them looked good to me, maybe to a newbie. If someone tries to fake a gold coin with tungsten it is difficult because tungsten is brittle and would be near impossible to get the same detail on the coin vs. a real gov bullion coin. Gold coins also have a particular "ring" to them sort of like silver. Anyone who buys gold bars and gets fakes because they wanted to save a few bucks on premiums vs. gold gov coins gets what they deserve, after reading my post herein. https://www.youtube.com/watch?v=2P1h6uXDACY Just my opinion. Jim
??? Haven't seen any fakes coins yet, doesn't mean they are not out there. Intercept one last year.... But not allow to show it....
I have spoken with dealers over the years, and every one of them had a "stash" of stuff some errant employee bought over the counter. I have had a chance to peruse a couple of these stashes and the fake gold COINS were a joke, the fake gold BARS looked 100% legit. Plus with the advent of something called the internet it is easy to search for sample of fake gov minted coins (note the pictures on some sites like Aliexpress often show the real coin even though a fake is being sold). I suppose there are super, secret fakes out there nobody knows of yet. Jim
