|Basic information||Name: Calama 001|
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2010
Mass: 270 g
This is 1 of 412 approved meteorites classified as Ureilite. [show all]
Search for other: Achondrites, Ureilites
|Comments:||Approved 1 Feb 2014|
Writeup from MB 103:
Calama 001 ~22°25’S, ~68°45’W
Found: 3 June 2010
History: Found June 3, 2010, on a limestone deflation plain near Calama by Eric and Gary Christensen while searching for meteorites. Fourteen fragments weighing 270 g were found within a 1 m area: largest fragment is 99 g.
Physical characteristics: Exterior of the stones is desert polished. Easy to cut. Sawn surface is dark with scattered graphite flakes.
Petrography: Typical ureilite with a protogranular texture, dominated by roughly equal proportions of anhedral, fine- to medium-grained (0.5 to 2 mm) olivine and pyroxene. Olivines surrounded by thin (<20 μm) reduction rims. Graphite flakes to 1 mm.
Geochemistry: (L. Garvie, ASU) Olivine cores Fa11.2±0.8, FeO/MnO=20.5±3.0, Cr2O3=0.53±0.05, CaO=0.25±0.02, n=12, rims down to Fa1.2 and FeO/MnO=2.8. Pyroxenes: augite Fs6.3±0.1Wo37.1±0.1, Na2O=0.20±0.02wt% n=6; low-Ca pyroxene Fs10.8±0.1Wo4.8±0.03, n=5.
Specimens: 22.1 g and two thin sections at ASU.
ASU: Center for Meteorite Studies, Arizona State University, Tempe, Arizona 85287-1404, United States; Website (institutional address; updated 14 Jan 2012)
|References:||Published in Meteoritical Bulletin, no. 103, in preparation (2014)|
This is 1 of 909 approved meteorites from Antofagasta, Chile (plus 1 impact crater)
This is 1 of 934 approved meteorites from Chile (plus 9 unapproved names) (plus 1 impact crater)
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