Toluca_(meteorite) Knowpia

Toluca
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 / 19.450°N 99.583°W
Observed fall	No
Fall date	>10,000 years ago
Found date	about 1776
TKW	3 tonnes
	Related media on Wikimedia Commons

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

History edit

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 edit

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.

References edit

^ ^a ^b ^c ^d Vagn Fabritius Buchwald (1975). "Handbook of Iron Meteorites".
^ Vagn Fabritius Buchwald (2005). Iron and Steel in Ancient Times. ISBN 978-87-7304-308-0.
^ ^a ^b Meteoritical Bulletin Database: Toluca

[buchwald1975-1] Vagn Fabritius Buchwald (1975). "Handbook of Iron Meteorites".

[buchwald2005-2] Vagn Fabritius Buchwald (2005). Iron and Steel in Ancient Times. ISBN 978-87-7304-308-0.

[metbul-3] Meteoritical Bulletin Database: Toluca

[1]

[2]

[3]

Summary

History edit

Composition and classification edit

See also edit

References edit