A Theoretical Way Of Testing The Purity Of The 1967 Silver 25c And 10c.

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Author	Replies: 4 / Views: 1,572
CanadianHunter New Member Canada 22 Posts	Posted 06/07/2017 4:27 pm I know this test may sound unrealistic but in theory it should work as long the equipment is accurate enough. My idea is using the Archimede's principle to test the purity of the silver coins. The alleged story is a long time ago the Greece king ordered a new crown to be made. The head designer presented to him a new crown but rumors said that some gold was allegedly taken away by the designer and he used silver to replace the gold stolen. So the king called in Archimede's for help and at first he was perplexed but when he took a bath he saw the water coming out of the bathtub. Archimedes then got an idea. His idea was if he placed the crown and the same weight of gold in the same amount of water and collect the water flowing out, then by weighting the water he will be able to identify if the crown is pure gold. The crown wasn't pure gold and the head designer was executed. So I am thinking if the right equipment is used and the condition of the coins are similar. Will it be possible to use this method to test the purity of the silver. Only a theoretical solution unsure if it actually works. Edited by CanadianHunter 06/07/2017 4:30 pm Report this Post to the Staff

DBM Pillar of the Community Canada 9864 Posts	Posted 06/07/2017 4:35 pm It's a variation of the specific gravity test, still used today. http://www.attilacoins.com/Calculat...ity_coin.asp "Dipping" is not considered cleaning... -from PCGS website Edited by DBM 06/07/2017 5:11 pm Report this Post to the Staff
CanadianHunter New Member Canada 22 Posts	Posted 06/07/2017 4:38 pm Well that makes me feel stupid. Report this Post to the Staff
okiecoiner Pillar of the Community Canada 5589 Posts	Posted 06/07/2017 5:03 pm The "water" test only works with VOLUME. A lead ingot and a gold ingot (or aluminum)of exactly the same size/dimensions, they will displace the same amount(and weight) of water. You approximate the specific gravity by how much of what metal is put in ... or to make the container that you put it in sink. At least that's how my 71 year old mind thinks it remembers it. Edited by okiecoiner 06/07/2017 5:05 pm Report this Post to the Staff
silverwolf Pillar of the Community Canada 3733 Posts	Posted 06/07/2017 5:19 pm another thing that I heard is that the pl sets are all .800 as they were made prior to the coins being switched to .500 silver. would love to know if this is true or not.. Report this Post to the Staff
	Replies: 4 / Views: 1,572

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