Iron, IAB complex, sLL subgroup
Found 1776, known earlier
19° 34' N., 99° 34' W.
Many large masses were found near Xiquipilco, Mexico, the largest of which weighed 300 pounds. Recently, a taxonomic revision was proposed by Wasson and Kallemeyn (2002) that includes iron meteorites from the IAB-IIICD group, along with numerous IAB-related meteorites. On a Ni–Au diagram, Toluca and other similar irons resolve a low-Au, low-Ni subgroup (sLL).
The specimen of Toluca shown above and below is a 2003 Harvey Award—"New Technology Award"—which was presented in recognition of the Meteorite Studies website.
