2 Medal - 1 - Gold & 1 - Sterling - Can The Weight Be Equal

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Author	Replies: 2 / Views: 1,907
D Pillar of the Community Canada 899 Posts	Posted 02/08/2010 03:24 am Here are 2 identical B C 100 Years Of Progress 1858 - 1958 medals. One is listed as Solid Gold 18k to 22k size 5/8 inch and weighs 2 grams... One is listed as Sterling, size is 5/8 inch and weighs 2 grams.. How can these two with different metals and being the same size be the same weight OR am I missing some thing here.. ( I admit I am not up to date of metallurgy ) Any help is appreciated.. Thanks Moved to Medals forum - Sap Report this Post to the Staff

Sap Moderator Australia 16816 Posts	Posted 02/08/2010 07:29 am Ordinarily, you're correct. 22k gold has a density of about 18.4 g/cm3, 18k gold is somewhere around 15 g/cm3, though the exact density will depend on which metal ithe gold is being diluted with. Sterling silver has a density of about 10.4 g/cm3. If the medals are truly of identical dimensions, the gold one should weigh about 1.5 to 1.7 times the weight of the silver one. However, these two medals can be "identical weights", under two circumstances: - There's no mention of the third dimension: thickness. The gold coin could be much thinner than the silver one. - Perhaps the weight is not being reported very precisely - notice it says "2 grams" not "2.0 grams". 1.5 grams and 2.5 grams can both be described as being "2 grams", if your balance is imprecise and only rounding to zero decimal places. I suspect it may be a combination of both: a thinner gold planchet and imprecise weight reporting. 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 Report this Post to the Staff
D Pillar of the Community Canada 899 Posts	Posted 02/08/2010 9:39 pm Unfortunately this was a case of a third circumstance... Deceptive Selling Practice... I received the gold medal and low and behold its not gold. It now appears to me that the pictures were color enhanced to have the appearance of gold and the description was far from the truth. Thanks to sap, his knowledge and Big Fancy Numbers he posted here ( I sent these numbers to the seller ) which was enough to let them know that they can't BS their way out of this and Fortunately I received a full refund... Thanks again sap... Report this Post to the Staff
	Replies: 2 / Views: 1,907

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