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Northwest Africa 10067
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:help 275 g
Meteoritical Bulletin:  MB 104  (2015)  R3
Recommended:  R3    [explanation]

This is 1 of 65 approved meteorites classified as R3.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3)
Comments: Approved 22 Oct 2015
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:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2014 Mar
Mass (g):275
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):0.4-51.3
Ferrosilite (mol%):2.1-30.6
Wollastonite (mol%):0.4-2.0
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.7
Type spec location:UWB
Main mass:G. Fujihara
Comments:GF14-2; submitted by A. Irving
Plots: O isotopes:  
   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, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
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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Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Denis gourgues   
Rodrigo Guerra   

     This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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