Message:

<p>[QUOTE=&quot;Mike Margolis, post: 3219262, member: 88401&quot;]Here is the method, you may lower the coin carefully in a graduated cylinder with a plastic forceps/tweezers. It will tell you the relative density(D=M/V) if it is not pure gold. If it comes out as pure gold than you may need the further jewelry test because that density could be faked but I would think that is kind of rare.</p><p><a href="https://sciencing.com/tell-pure-using-water-displacement-8109592.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://sciencing.com/tell-pure-using-water-displacement-8109592.html" rel="nofollow">https://sciencing.com/tell-pure-using-water-displacement-8109592.html</a>[/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in