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 Replies: 6 / Views: 1,497 |
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Valued Member
United States
122 Posts |
My brother inherited the pictured bar a few years ago. He says it is heavy. He and I both believe it is probably platinum.  He says it weighs about a pound, just holding it in his hand. He called the company on the bar and they said they would call him back, but did not do so. Please take a look:      I appreciate your help.  -Semper Fi from Big-byte |
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Moderator
 Australia
16868 Posts |
It's silver, I'm afraid.
Besides the tarnish (platinum doesn't tarnish), the concentric "tree-ring" pattern in it indicates it's been poured into a mould and cooled; the melting point of platinum is way too high to do that routinely. Platinum ingots are usually made by compressing platinum sponge.
If you want confirmation, do a quick rule-of-thumb density check. Weigh the bar, preferably in grams. Then measure the bar's length, width and thickness in centimetres and multiply those three numbers together to get a crude volume of the object, in cubic centimetres. Weight divide by volume equals density, in grams per cubic centimetre. Silver has a density of 10.49 grams/cm3. Platinum is more than double that, at 21.45 grams/cm3, so even if the volume calculations are a little rough, you should be able to tell the difference between the two metals.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis
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Valued Member
 United States
122 Posts |
Thank you ever so much! It's great to keep getting educated. The CCF is a wonderful resource for us all!  |
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Valued Member
Canada
442 Posts |
Even if its not plat, its still about 15 troy oz of silver! i'd be mad if my bro inhereited something like that but not me! :)
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Valued Member
United States
122 Posts |
Yes, Vinnycoin. Normaly, I would be. But he inherited it from his wife. She had inherited it from her cousin, so I was totally locked out of the deal. Not a chance. |
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Pillar of the Community
United States
3670 Posts |
Could it perhaps be 2 troy pounds an 1 oz., via that +25 stamp....
Your brother could have easily miss-estimated, esp since in his mind I bet he is thinking a pound is 16 oz., so that would only be 9 oz. from 25, and to an untrained hand, an easy mistaken estimation....
Just wishful thinking, so weigh it and go from there....
Edited by Silverhawk74
01/25/2012 6:09 pm
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Pillar of the Community
United States
4008 Posts |
Could be, Hawk. Most people can't estimate weights all that closely unless they work in a job where handling objects of known weight is common. My wife is always handing me things to estimate their weights because she cannot do it. Yeah, I was wondering about that "25+" myself. At first, I thought that the bar was small and that this might be its weight in grams but if the OP says that it weighs about a lb. then this is not the case. It would be good to get a more accurate weight on this. Even a super-market scale could be used to get a decent approximation of its weight if a better scale is not available. Here is a URL that contains an article that may relate to this company: http://community.seattletimes.nwsou...slug=2339988 |
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Replies: 6 / Views: 1,497 |
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Posted 01/25/2012 10:14 am
