Message:

<p>[QUOTE=&quot;Conder101, post: 2749846, member: 66&quot;]Problem with an XRF scanner is how deeply it penetrates.&nbsp; Not deeply enough and it mainly just reads the pure copper plating and you get a reading that makes it look like a mostly copper coin.&nbsp; The deeper it penetrates the lower the copper reading becomes and the higher the zinc reading gets.&nbsp; It penetrated deeper when you shot the reverse.&nbsp; A homogeneous alloy like a copper cent should be, should give near ly identical reading on both sides.</p><p><br /></p><p>The 2.64 gram weight confirms it is a copper plated zinc coin.&nbsp; Standard weight for a Zincoln is 2.5 grams +/- .13 grams.&nbsp; So a withing tolerance Zincoln can weigh as high as 2.63 grams.</p><p><br /></p><p>A copper 1983 cent would weigh 3.1 grams +/- .13 grams so the lowest a copper cent would weigh is 2.97 grams, well above the weight of your coin.[/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