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Allende meteorite (Pueblito de Allende meteorite; Qutrixpileo meteorite [NHM cat.]), Pueblito de Allende, Chihuahua, Mexico

Olivine
Allende meteorite, Pueblito de Allende, Chihuahua, Mexico

Photo: Chinellato Matteo
Latitude: 26°58'N
Longitude: 105°19'W
The Allende meteorite fell at 1:05 AM on February 8, 1969. It is a carbonaceous chondrite, type CV3. Its mass was 2 metric tons. This The strewnfield is very large, measuring approximately 8 by 50 km.

Allende is often described as "the best-studied meteorite in history".
It is notable for possessing abundant, large calcium-aluminium-rich inclusions (CAI), which are among the oldest objects formed in the Solar System. The meteorite is also famous for its complex carbon compounds (fullerenes (C60 and C70), fulleranes (C60HX), polycyclic aromatic hydrocarbons, benzofluoranthene and corennulene (Becker and Bunch, 1997). Unlike many other chondrites, Allende is almost completely lacking in Fe-Ni metal.

References

American Mineralogist (1971): 56: 2053.

El Goresy, A., Nagel, K., Dominik, B., and Ramdohr, P. (1977) Fremdlinge: Potential Presolar Material in Ca, Al rich inclusions of Allende. Meteoritics, 12, 215-216.

Becker L. and Bunch T. E. (1997).

Fisenko, A.V. and L.F. Semenova (1997) On the Selection of Chondrites for Studying Interstellar Diamond. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences.

Imai, H. and Yurimoto, H. (2000).

F. E. Brenker and A. N. Krot (2002): Evidence for a high temperature episode during multistage alteration of Allende dark inclusions. 65th Annual Meteoritical Society Meeting, 5053.pdf (Abs.) [http://www.lpi.usra.edu/meetings/metsoc2002/pdf/5053.pdf].

Ma, C., Beckett, J.R., and Rossman, G.R. (2009) Allendeite and Hexamolybdenum: Two New Ultra-Refractory Minerals in Allende and Two Missing Links. 40th Lunar and Planetary Science Conference, 699-700 (abstract).

Ma, C., Tschauner, O., Rossman, G.R. and Liu, W. (2011) Panguite, IMA 2010-057. CNMNC Newsletter No. 7, February 2011, page 30; Mineralogical Magazine, 75, 27-31



External Links

- http://en.wikipedia.org/wiki/Allende_meteorite

Mineral List

Allendeite (TL)
Andradite
Anorthite
Augite
var: Fassaite

Corundum
Davisite (TL)
Diamond
Fayalite
Forsterite
Grossmanite (TL)
Grossular
Hedenbergite
Hexamolybdenum (TL)
Hibonite
Ilmenite
IMA2009-027 (TL)
Kamiokite
Kirschsteinite
Kushiroite
Magnetite
'Melilite'
Merrillite
Monipite (TL)
Nepheline
'Olivine'
Panguite (TL)
Pentlandite
Perovskite
Rhenium
Rhönite
Sodalite
Spinel
Tazheranite
Tistarite (TL)
Troilite
Tschermakite
Tugarinovite
Wollastonite
'Wollastonite-1T'
'Wollastonite-2M'


40 entries listed. 34 valid minerals. 8 type localities (valid minerals).

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