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Patos de Minas (octahedrite) | |||||||||||||||||||||||||||||||||
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Basic information | Name: Patos de Minas (octahedrite) This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 1925 Country: Brazil Mass: ![]() | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 82 approved meteorites (plus 1 unapproved name) classified as Iron, IAB complex. [show all] Search for other: IAB complex irons, Iron meteorites, and Metal-rich meteorites | ||||||||||||||||||||||||||||||||
Comments: | Revised 4 Aug 2008: final writeup | ||||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 93:
Patos de Minas (octahedrite) 18°35'S, 46°32'W Patos de Minas, Minas Gerais state, Brazil Find: 1925; main mass in 2002 Iron (IAB complex) History: A small (18.4 g) end piece of a badly oxidized octahedrite was found in 1925 at the collection of the Escola de Minas Ouro Preto. In 1960 it was donated to Museu Nacional of Rio de Janeiro. The meteorite was mentioned in the British Museum catalog and the Handbook of iron meteorites of Buchwald, when it was named Patos de Minas (octahedrite), or Patos II, to distinguish it from Corrego do Areado, or Patos de Minas (hexahedrite). In 2002, a mass of about 200 kg was found by Paulo Garcia when plowing the land with a tractor. Physical characteristics: One mass of about 200 kg has average dimensions of 54 × 33 × 22 cm. It is rough, elongated and very weathered, exhibiting some grooves due to terrestrial corrosion and with no signs of fusion crust. Geochemistry: (John T. Wasson, UCLA, data obtained by INAA). Bulk composition: Co = 4.8, Ni = 83 (both mg/g); Ga = 67, Cu = 240, As = 15.4, Ir = 1.3 and Au = 1.7 (all in µg/g). Classification: Iron (IAB complex); very weathered Type specimens: A total of 1200 g of sample is on deposit at MNRJ/UFRJ/Rio de Janeiro, Brazil. The main mass was recently sold by the finder. Submitted by: M. Zucolotto. | ||||||||||||||||||||||||||||||||
Buchwald | The following entries were found for Patos de Minas (octahedrite) in Buchwald (1975) [Buchwald, Vagn F. (1975) Handbook of Iron Meteorites. University of California Press, 1418 pp.]
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Data from: MB93 Table 3 Line 19: |
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Institutions and collections |
MNRJ: Museu Nacional, Quinta da Boa Vista, Rio de Janeiro, CEP 20940-040, Brazil (institutional address; updated 26 Dec 2011) UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 93, MAPS 43, 571-632 (2008)
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Photos: |
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Geography:![]() |
Statistics: This is 1 of 22 approved meteorites from Minas Gerais, Brazil (plus 2 unapproved names) This is 1 of 87 approved meteorites from Brazil (plus 6 unapproved names) (plus 7 impact craters) | ||||||||||||||||||||||||||||||||
Proximity search: | |||||||||||||||||||||||||||||||||
Synonyms![]() |
Patos II (In NHM Cat) |