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| Northwest Africa 15335 | |||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 15335 This is an OFFICIAL meteorite name. Abbreviation: NWA 15335 Observed fall: No Year found: 2020 Country: Algeria Mass:  1195 g | ||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 77 approved meteorites classified as R3. [show all] Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3) | ||||||||||||||||||||||||||||||
| Comments: | Approved 22 Oct 2022 | ||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 111:
Northwest Africa 15335 (NWA 15335) Algeria Purchased: 2020 Feb Classification: Rumuruti chondrite (R3) History: Purchased by John Higgins in February 2020 from a Sahrawi dealer in Algeria. Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) The specimen consists predominantly of well-formed unequilibrated chondrules (apparent diameter 560±290 µm, N = 25) containing devitrified glass, but also present are some related lithic chondrite clasts and sparse equigranular lithic clasts. These are set in a fine grained matrix (~40 vol.%, brown in thin section) containing abundant pentlandite, as well as accessory chromite, troilite and minor Fe metal. Two large (1-2 cm) lithic clasts in the studied thin section are composed of an equigranular assemblage (mean grainsize ~100 µm) of normally-zoned olivine, chromite, sulfides and glass. Geochemistry: Olivine in chondrules (Fa31.4±8.9, range Fa16.1-42.9, N = 11), low-Ca pyroxene in chondrules (Fs13.0±6.5Wo1.4±1.6, range Fs7.4-21.7Wo0.2-4.1, N = 5), subcalcic augite in chondrules (Fs16.6±1.3Wo29.6±0.9, range Fs15.6-17.5Wo28.9-30.2, N = 2), augite in chondrules (Fs11.1±0.8Wo45.6±1.0, range Fs10.6-12.1Wo46.2-44.5, N = 3), olivine in matrix (Fa40.2±7.4, range Fa27.7-50.0, N = 6), olivine in equigranular clast (Fa29.2±2.8, range Fa27.2-31.2, N = 2). Classification: R3 chondrite breccia (with several large equigranular-textured clasts). Specimens: 47 g including one polished thin section at UWB; remainder with Mr. K. Castillo | ||||||||||||||||||||||||||||||
| Data from: MB111 Table 0 Line 0: |
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| Institutions and collections |
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) BrownU: Joseph Boesenberg Brown University Dept of Earth, Environmental and Planetary Sciences (DEEPS) 324 Brook Street Providence, RI 02912 , United States (institutional address; updated 4 Jan 2024) |
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| Catalogs: |
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| References: | Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Geography:
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Statistics: This is 1 of 1356 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters) | ||||||||||||||||||||||||||||||
| Also see: |
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| Revision history: |
This lists important revisions made to data for this record.
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