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<p>[QUOTE="Bing, post: 2200587, member: 44132"]The size and weight of gold coins changed dramatically during the imperial period; however, regardless of the <i>size</i> or <i>weight</i> of the <i>aureus</i>, the coin's purity was little affected. Analysis of the Roman <i>aureus</i> shows the purity level usually to have been near to 24 <a href="https://en.wikipedia.org/wiki/Carat_(purity)" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Carat_(purity)" rel="nofollow">carat</a> gold in excess of 99%.</p><p><br /></p><p>I also ran across this table on Wiki for those interested:</p><p><b>Gold content and price comparison</b></p><p><b>Name</b> <b>Gold Content</b> <b>Julius Caesar Aureus</b> <b>USD Value</b></p><p>Julius Caesar Aureus 8.18 g 1.000 $366.22</p><p>Nero Aureus 7.27 g 0.889 $325.60</p><p>Caracalla Aureus 6.55 g 0.800 $293.04</p><p>Diocletian Aureus 5.45 g 0.667 $244.20</p><p>Constantine Solidus 4.55 g 0.556 $203.50</p><p>English Sovereign 14.90 g 1.775 $667.24</p><p>British Sovereign 7.32 g 0.895 $327.82</p><p>USA Eagle 1796-1833 16.04 g 1.960 $717.86</p><p>USA Eagle 1834-1836 15.73 g 1.923 $704.33</p><p>USA Eagle 1837-1933 15.05 g 1.839 $673.62</p><p>USA Gold Dollar 1849-1889 1.51 g 0.184 $67.37[/QUOTE]</p><p><br /></p>
[QUOTE="Bing, post: 2200587, member: 44132"]The size and weight of gold coins changed dramatically during the imperial period; however, regardless of the [I]size[/I] or [I]weight[/I] of the [I]aureus[/I], the coin's purity was little affected. Analysis of the Roman [I]aureus[/I] shows the purity level usually to have been near to 24 [URL='https://en.wikipedia.org/wiki/Carat_(purity)']carat[/URL] gold in excess of 99%. I also ran across this table on Wiki for those interested: [B]Gold content and price comparison Name[/B] [B]Gold Content[/B] [B]Julius Caesar Aureus[/B] [B]USD Value[/B] Julius Caesar Aureus 8.18 g 1.000 $366.22 Nero Aureus 7.27 g 0.889 $325.60 Caracalla Aureus 6.55 g 0.800 $293.04 Diocletian Aureus 5.45 g 0.667 $244.20 Constantine Solidus 4.55 g 0.556 $203.50 English Sovereign 14.90 g 1.775 $667.24 British Sovereign 7.32 g 0.895 $327.82 USA Eagle 1796-1833 16.04 g 1.960 $717.86 USA Eagle 1834-1836 15.73 g 1.923 $704.33 USA Eagle 1837-1933 15.05 g 1.839 $673.62 USA Gold Dollar 1849-1889 1.51 g 0.184 $67.37[/QUOTE]
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