<p>First reported in 1576, although by then almost 4,000 years old, the Campo del Cielo fall has produced some of the largest and most exciting meteorites to be found anywhere in the world. Only comparatively recently, however, was a new strewn field for this fall discovered, on higher ground and therefore better protected from water and other oxidants in the earth than the meteorites found on the valley floor. This complete specimen shows no signs of weathering, its finely-textured fusion crust a soft gun-metal gray, dramatically highlighted by sharp ridges and some of the distinctive "thumbprint" regmaglypts caused by pressure to the molten metal on its fiery descent to Earth. 
</p><p>&lt;a href="<a rel="nofollow" class="external free" href="https://www.lpi.usra.edu/meteor/metbull.php?sea=Campo+del+Cielo&amp;sfor=names&amp;ants=&amp;nwas=&amp;falls=&amp;valids=&amp;stype=contains&amp;lrec=50&amp;map=ge&amp;browse=&amp;country=All&amp;srt=name&amp;categ=All&amp;mblist=All&amp;rect=&amp;phot=&amp;strewn=&amp;snew=0&amp;pnt=Normal">https://www.lpi.usra.edu/meteor/metbull.php?sea=Campo+del+Cielo&amp;sfor=names&amp;ants=&amp;nwas=&amp;falls=&amp;valids=&amp;stype=contains&amp;lrec=50&amp;map=ge&amp;browse=&amp;country=All&amp;srt=name&amp;categ=All&amp;mblist=All&amp;rect=&amp;phot=&amp;strewn=&amp;snew=0&amp;pnt=Normal</a> table&amp;code=5247" rel="noreferrer nofollow"&gt;Campo del Cielo&lt;/a&gt;
Iron, coarse octahedrite 
Gran Chaco, Argentina 1576
</p>
It measures approximately 12 x 8 1/2 x 4 1/2 inches and weighs approximately 15.4 kg.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/44124348109@N01">Steve Jurvetson</a> from Los Altos, USA
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/jurvetson/49796495912/">Big Chunk of Iron from the Skies — A Complete Campo</a>