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Country: Mexico
State/District: Chihuahua
Co-ordinates: 30°42'N, 105°30'W (approx.)
Date of find: 1909
Total known weight: 52.6kg
Number of pieces: 1
Remarks:
Classification:
Type: Pallasite, main group, angular olivine shape
Shock Stage:
Weathering Stage:
Mineral Analyses: Olivine Fa11.6, Pyroxene Fs11.6
Pairings: not known
Synonyms: not known
Metbase description: Show/Hide
A mass of 116lb was found 60 miles E of Ahumada, M.H.Hey, Cat. Met., 1966, p.9. Described, O.C.Farrington, Field Mus. Nat. Hist. Geol. Ser., 1914, 5, (178), p.1. Cooling rate and olivine composition, Fa11.6, P.R.Buseck and J.I.Goldstein, Bull. Geol. Soc. Amer., 1969, 80, p.2141. Analysis of metal, 8.0% Ni, 21.4 ppm Ga, 49.0 ppm Ge, 0.057 ppm Ir, J.T.Wasson and S.P.Sedwick, Nature, 1969, 222, p.22. Classification and analysis of metal
phase, main group pallasite, E.R.D.Scott, GCA, 1977, 41, p.349. Study of olivine-metal texture, E.R.D.Scott, GCA, 1977, 41, p.693. Mineralogy and petrology, contains pyroxene, P.R.Busek, GCA, 1977, 41, p.711. Chemical composition of olivines, J.V.Smith et al., J. Geophys. Res., 1983, 88 (suppl.), p.B229. Nitrogen isotopic composition of metal and silicate, C.A.Prombo and R.N.Clayton, GCA, 1993, 57, p.3749; see also, LPSC, 1984, 15,
p.655 (abs.); LPSC, 1983, 14, p.620 (abs.). Oxygen isotopic composition, R.N.Clayton and T.K.Mayeda, GCA, 1996, 60, p.1999.
The meteorite data was copied from MetBase 7.1 for Windows.
For information about this software please contact the Author: Joern Koblitz, The MetBase Library of Meteoritics and Planetary Sciences, Benquestrasse 27, D-28209 Bremen, Germany
Phone: +49 421 24 100 24 Fax: +49 421 24 100 99
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