Toluca (meteorite)

Toluca is a group of iron meteorites found in Jiquipilco, Mexico near Toluca.^[1]

Toluca
500g Toluca slice
Type	Iron
Structural classification	Coarse Octahedrite
Group	IAB-sLL
Composition	90.5% Fe; 8.1% Ni
Country	Mexico
Region	Toluca Valley, Jiquipilco, Mexico State
Coordinates	19°27′N 99°35′W[1]
Observed fall	No
Fall date	>10,000 years ago
Found date	about 1776
TKW	3 tonnes
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History

The meteorites probably crashed into Earth more than 10,000 years ago.^[2] For centuries, Mexican people living near the meteorites used them as a source of metal for various tools. They were first described by conquistadores in about 1776.^[1]

The total known mass is about 3 tonnes.^[3]

Composition and classification

These iron meteorites are a coarse octahedrite, chemical type IAB-sLL.^[3] The mean composition is 90.5% Fe and 8.1% Ni.^[1] They often contain large troilite inclusions.

See also

• Glossary of meteoritics