Hi all – I'm looking for the release date, on the Gregorian calendar, of the American Gold Eagles. They were introduced in 1986, but I haven't...
What are the rules or principles for when object A will scratch object B? It can't be random, and it's not going to always happen, so it must be...
They come into contact with things harder than the coin, like constant abrasion from particles in people's hands, pockets, and cash registers. And...
Are you meaning to say that cotton is harder than gold and silver? I don't understand how that can possibly be true. Mohs is typically used for...
Thanks. What's a 1st-growth forest sealed home? Are you talking about the forest around your home, or some kind of lumber construction? First...
Hi all – I keep seeing claims that Q-Tips, cotton cloths, cloths in general, paper, and maybe loud music scratch coins. I'm confused by these...
Good points. Isn't tarnishing of pure silver bullion a pervasive phenomenon? I see people complaining about it all the time on various forums, and...
No, that was just pure silver bullion like Maple Leafs. I've never seen 90% silver coins tarnish.
What composition are you referring to?
But why does 90% silver tarnish less than 92.5% silver (Sterling)? That's the key question. The article's claim that tarnish increases as purity...
I'm struggling to understand your perspective. You can buy any amount of Bitcoin, unless we're talking about billions of dollars worth, and we're...
This is bizarre. You can buy any dollar amount of Bitcoin you want. The price of a whole Bitcoin is irrelevant – you're not required to buy whole...
Yeah, but that's not actually true, as far as pure silver not tarnishing. It tarnishes all the time. Tarnish is one of the biggest complaints...
How long has this been true? Just recently? Maybe it's not the normal long-term situation. I doubt that the average person knows anything about...
Hi all – Any metallurgists about? Or anyone who knows a thing or two about silver tarnish... I'm stumped. Observation 1: American "junk" silver...
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