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I was thinking of buying a densimeter to measure gold karat. Most of
them would be scrap jewellery.
Is it accurate?
Is it worth the money? (Around $800 USD)
When and where does it fail?
Are there any other assaying methods that you could suggest?
I was going for the Aqua Regia with touchstone assaying method, but
the fumes from this method is just too dangerous for my working