lol, you must jingle jangle a lot when you walk around, I'd be lying if I said you wallet didn't remind me of this:

I have a platinum wedding band but I never even thought about the purity of it, how can I find that out?
I dumped my pockets and it was mostly grocery store receipts.
I do jingle a lot @funbobby51! The silver coins make it nice though!
Most platinum jewelry is .950. If it is marked "plat," then it is at least 95% platinum and another platinum group metal, most likely ruthenium.
Of course Mene 24K Investment Jewelry is .999 fine pure Platinum! Thanks for stopping by!