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Jp’s Gold Thread


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I used the formula I have used for 40 years and always found pretty accurate. It is as follows; air weight = 125.8.       Water weight = 100.3    Air weight minus water weight gives the cubic cms of volume of 25.5.    Air weight divided by the cubic cms of volume gives the specific gravity of 4.93.  Then using the equation of 116 - 310 divided by the SG of 4.93 gives a figure of  53.12, which is the percentage of gold in the specimen. Which comes in at 66.82 gms. Quite close to the melted weight of 66.2 gms.

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