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<p>[QUOTE=&quot;Conder101, post: 3597587, member: 66&quot;]This is NOT a definitive test!&nbsp; The half dollars have too wide a weight tolerance range to make weight a conclusive test.</p><p><br /></p><p>A copper nickel clad half tolerance range is 10.89 grams to 11.794 grams.</p><p>A 40% silver half has a range of 11.1grams to 11.9 grams.</p><p>So if you have a half dollar that weighs anywhere between 11.1 to 11.794 grams it could be either one.&nbsp; And almost every half dollar you check WILL fall within that range.</p><p><br /></p><p>Examining the edge is usually a pretty good test, but only on high grade coins.&nbsp; With circulation the edge of the center 80% copper 20% silver layer darkens and can make the edge more difficult to tell apart.</p><p><br /></p><p>The BEST way to indisputably tell the two compositions apart is either by specific gravity, or an XRF gun.[/QUOTE]</p><p><br /></p>

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