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346.1 grams. 81 mm x 63 mm x 49 mm   Iron, IAB-MG

TKW 50 metric tons. Fall not observed. Found 1576, Argentina.

From Wikipedia:

The Campo del Cielo refers to a group of iron meteorites or to the area where they were found situated on the border between the provinces of Chaco and Santiago del Estero, 1,000 kilometers (620 mi) northwest of Buenos Aires, Argentina. The crater field covers an area of 3×20 kilometers and contains at least 26 craters, the largest being 115×91 meters. The craters' age is estimated as 4,000–5,000 years. The craters, containing iron masses, were reported in 1576, but were already well known to the aboriginal inhabitants of the area. The craters and the area around contain numerous fragments of an iron meteorite. The total weight of the pieces so far recovered exceeds 100 tonnes, making the meteorite the heaviest one ever recovered on Earth. The largest fragment, consisting of 37 tonnes, is the second heaviest single-piece meteorite recovered on Earth, after the Hoba meteorite.

   

Geoff writes:

Good monsoon afternoon fellow Tucsonans,

I have a zoomorphic Campo to contribute: the "Alligator Snapping Turtle"

This remarkable iron is a classic example of just how sculptural iron meteorites come. From a zoomorphic point of view, we see a very angry head of an alligator snapping turtle ready to crush with almost as much power as the Campo del Cielo meteorite impact.

Campo del Cielo is a class IAB iron and an important historic meteorite. In English, the name means "Field of Heaven" or "Field of the sky." First discovered in 1576 by Spanish explorers under Captain de Miravel in Chaco province, Argentina, it is one of Earth's oldest- known meteorites. The impact is believed to have occurred approximately 5,600 years ago and the Campo strewnfield is roughly 18 km in length and includes about 25 craters. Campo del Cielo is a polycrystalline, coarse octahedrite and cut specimens show significant inclusions of silicate-graphite-trolite.

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