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Northwest Africa 10067 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 10067 This is an OFFICIAL meteorite name. Abbreviation: NWA 10067 Observed fall: No Year found: 2014 Country: (Northwest Africa) Mass: 275 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 74 approved meteorites classified as R3. [show all] Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3) | ||||||||||||||||||||||||||||||
Comments: | Approved 22 Oct 2015 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 104:
Northwest Africa 10067 (NWA 10067) (Northwest Africa) Purchased: 2014 Mar Classification: Rumuruti chondrite (R3) History: Purchased by Gary Fujihara in March 2014 from a Moroccan dealer. Physical characteristics: Several dark brown breccia stones were found together and some exhibit small beige inclusions. Petrography: (A. Irving and S. Kuehner, UWS) Composed mainly of well-formed, small to medium-sized (0.9±0.4 mm) chondrules plus sparse ovoid clasts of the same lithology set within a much finer grained, deep brown matrix (~45 vol.%). Major minerals are olivine, orthopyroxene, subcalcic augite, and augite with accessory troilite, Ti-bearing chromite and Al-rich chromite, plus minor secondary barite. No intact CAI were found in two studied thin sections, but the matrix contains rare grains of Cr-pleonaste, perovskite and Al-Ti diopside. Geochemistry: Olivine (Fa0.4-51.3, Cr2O3 in ferroan examples = 0.07-0.11 wt.%, mean 0.09±0.01 wt.%, N = 7), orthopyroxene (Fs2.1-30.6Wo0.4-2.0, N = 3), subcalcic augite (Fs15.7Wo34.4), augite (Fs10.5Wo44.2). Oxygen isotopes (K. Ziegler, UNM): analyses of three acid-washed subsamples by laser fluorination gave, respectively, δ17O 5.122, 5.244, 4.799; δ18O 5.399, 5.655, 4.271; Δ17O 2.271, 2.258, 2.544 per mil. Classification: Rumuruti chondrite (R3, breccia). Specimens: 20.7 g including two polished thin sections at UWB. The remaining material is held by Mr. G. Fujihara. | ||||||||||||||||||||||||||||||
Data from: MB104 Table 0 Line 0: |
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Plots: | O isotopes: | ||||||||||||||||||||||||||||||
Institutions and collections |
UNM: Institute of Meteoritics
MSC03 2050
University of New Mexico
Albuquerque NM 87131-1126
USA, United States; Website (institutional address; updated 12 Feb 2015) UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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Geography: |
Statistics: This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names) | ||||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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