The Tuxtuac, Mexico, meteorite, an LL5 chondrite fall

Details The Tuxtuac, Mexico, meteorite, an LL5 chondrite fall The Tuxtuac, Mexico, meteorite, an LL5 chondrite fall

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988metic..23..321g&link_type=abstract

Meteoritics (ISSN 0026-1114), vol. 23, Dec. 1988, p. 321-323.

Computer Science

2

Chondrites, Meteoritic Composition, Meteoritic Microstructures, Nickel Compounds, Breccia, Chondrule, Kamacite, Mexico, Olivine, Silicates

Scientific paper

The Tuxtuac meteorite fell in Zacatecas state, Mexico, on October 16, 1975, at 1820 hours. Two partly crusted masses, weighing 1924 g and 2340 g, were recovered. The stone is an ordinary chondrite, LL5, with olivine Fa30 and 19.22 wt pct total iron. The silicates contain numerous voids and a froth-like mesostasis is present within some chondrules. Metal phases present are kamacite (5.7-6.4 pct Ni, 6-7 pct Co) and high nickel metal (taenite 37-41 pct Ni, 1.7 + or - 0.3 pct Co; tetrataenite 47-52 pct Ni, 0.8-1.4 pct Co). The stone is unusual for an LL-group chondrite in that it exhibits neither large-scale brecciation features nor dark veins.

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