Iron, ataxite (ungrouped)Ryazan district, RussiaAtaxites are a rare type of iron-nickel meteorite that do not exhibit a Widmanstätten pattern when they are etched due to their high nickel content. Ataxites are known as ungrouped irons as they do not match the chemistry of any of the other iron-nickel groups and most certainly come from a different planetary body than the other irons.Dronino is an ataxite that was found by a Russian mushroom hunter in July of 2002 near the Russian village of Dronino (54° 44' N, 41° 25' E.) Over 600 meteorites were found, totaling about 3000 kilograms--the largest meteorite weighing 250 kilograms. All of the meteorites were heavily weathered and rusted from being buried underground from 1 to 6 feet. It is not known when this meteorite fell to Earth, but it was certainly more than one thousand years ago, as the area has been inhabited since then and no mention of such a spectacular cosmic event is recorded. Weighing approximately 13.83 kilograms (30.5 lbs) and measuring 15 x 8 x 3 in