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Anyone know how to tell real platinum vs fake?

P

PoPPeR

Diamond Member
it's a platinum chain. I was just wondering what the differences were (if you can tell from how heavy it is, or if it reacts to certain things, etc.) between fake and real platinum
 
I guess you could weigh, it figure out the volume based on how much water it displaces, and compare the density of the chain to the actual density of platinum (look it up on the Internet). Then run around naked yelling "Eureka!"
 
The sheen of the metal, along with the weight and softness should be pretty unique...if nothing else, take it to a jewelry shop for a quick question or an appraiser and ask.

How do you come across a platinum band, anyway?
 
Originally posted by: mugs
I guess you could weigh, it figure out the volume based on how much water it displaces, and compare the density of the chain to the actual density of platinum (look it up on the Internet). Then run around naked yelling "Eureka!"
Click to expand...

That's what I'd do.
 
well it was a little easier then that. I just looked up the marking that I found on it (heh) and googled it. Low and behold, the marking is the name of a big jewelry exporter. I dunno if its platinum or not but I know where it came from at least.
 
Originally posted by: PoPPeR
well it was a little easier then that. I just looked up the marking that I found on it (heh) and googled it. Low and behold, the marking is the name of a big jewelry exporter. I dunno if its platinum or not but I know where it came from at least.
Click to expand...

Just fill a kitchen measuring cup with exactly 1 cup of water, put the chain in, and measure the new water level.

Then weigh it. You should get 21450 kg/m^3.
 
Originally posted by: Chaotic42
Originally posted by: PoPPeR
well it was a little easier then that. I just looked up the marking that I found on it (heh) and googled it. Low and behold, the marking is the name of a big jewelry exporter. I dunno if its platinum or not but I know where it came from at least.
Click to expand...

Just fill a kitchen measuring cup with exactly 1 cup of water, put the chain in, and measure the new water level.

Then weigh it. You should get 21450 kg/m^3.
Click to expand...
The only things I have available to weigh stuff is a human weight scale thing. This will have to wait for now
 
Originally posted by: PoPPeR
The only things I have available to weigh stuff is a human weight scale thing. This will have to wait for now
Click to expand...
Just accelerate it to 1km/s in a vacuum, then find out how much energy it took to do that, then you'll know its mass.
 
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