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<p>[QUOTE=&quot;ken454, post: 3049711, member: 56575&quot;]not considered an artifact since it was not made by humans, but its the oldest thing i own and can hold...a piece of the Canyon Diablo meteorite...</p><p><br /></p><p>[ATTACH=full]762816[/ATTACH] [ATTACH=full]762817[/ATTACH] </p><p><br /></p><p>8 cm long, 4 cm wide in the middle and weighs 86.4 grams</p><p>The Canyon Diablo meteorites are the many fragments of the asteroid that created Barringer Crater (Meteor Crater), Arizona, United States. Meteorites have been found around the crater rim, and are named for nearby Canyon Diablo, which lies about three to four miles west of the crater.</p><p><br /></p><p>The asteroid fell about 50,000 years ago.</p><p>In 1953, Clair Cameron Patterson measured ratios of the lead isotopes in samples of the meteorite. The result permitted a refinement of the estimate of the age of the Earth to 4.550 billion years (± 70 million years).</p><p><br /></p><p>Oldest coin is this...</p><p><br /></p><p>[ATTACH=full]762824[/ATTACH] </p><p><br /></p><p>GREEK</p><p>Sarmatia, Olbia</p><p>5th-4th Centuries BC</p><p>Bottlenose Dolphine - proto money</p><p>BMC Thrace Sarmatia 19</p><p>27mm 1.7g</p><p>BMC 19[/QUOTE]</p><p><br /></p>

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