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| Catalina 400 | |||||||||||||||||||||||||||||||||||
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| Basic information | Name: Catalina 400 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2019 Country: Chile Mass:  117 g | ||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 8 approved meteorites classified as EH5. [show all] Search for other: EH chondrites, Enstatite chondrites, Enstatite chondrites (type 4-7), and Enstatite-rich meteorites | ||||||||||||||||||||||||||||||||||
| Comments: | Approved 18 Dec 2021 | ||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 110:
Catalina 400 24°56’56.0"S, 69°44’32.1"W Antofagasta, Chile Find: 2019 Nov 26 Classification: Enstatite chondrite (EH5) Petrography: (J. Gattacceca, CEREGE) Chondrite with small chondrules (~200 µm) and elongated enstatite crystals set in a matrix made mostly of terrestrial weathering products. Plagioclase up to 10 µm. Most opaques are weathered. Surviving primary opaque minerals are rare kamacite, daubreelite, schreibersite and a variety of iron-nickel phosphides. Graphite inclusions are found as aggregates of ~10 µm grains. Geochemistry: Enstatite Fs1.1±0.4Wo0.1±0.0, range Fs0.7-1.6 (n=4). Plagioclase An2.6Ab93.0Or4.4 (n=2). Kamacite contains 2.90 wt% Si. Oxygen isotopic composition (J, Gattacceca, C, Sonzogni, CEREGE) from analysis of one acid-washed (HCl, EATG) 1.5 mg aliquot of a powdered 129 mg bulk sample is δ17O=2.982‰, δ18O=6.052‰ , Δ17O=-0.165‰ (slope 0.52, analytical uncertainties 0.08‰, 0.12‰, 0.03‰ respectively). Classification: Enstatite chondrite (EH5). EH based on the Si content of metal. Type 5 based on the plagioclase size. Specimens: Type specimen at CEREGE. Main mass at MCC | ||||||||||||||||||||||||||||||||||
| Data from: MB110 Table 0 Line 0: |
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| Plots: | O isotopes: | ||||||||||||||||||||||||||||||||||
| Institutions and collections |
CEREGE: CEREGE
BP 80
Avenue Philibert, Technopole de l'Arbois
13545 Aix-en-Provence Cedex 4
France, France (institutional address; updated 29 Oct 2018) MMC: Museo del Meteorito, Tocopilla 401, San Pedro de Atacama, Chile. or Alonso de Ercilla 1250, La Herradura, Coquimbo, Chile, Chile; Website (institutional address; updated 11 Mar 2014) |
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| References: | Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography:
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Statistics: This is 1 of 2687 approved meteorites from Antofagasta, Chile (plus 9 unapproved names) (plus 1 impact crater) This is 1 of 2716 approved meteorites from Chile (plus 15 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||||||
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