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| Northwest Africa 15824 | |||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 15824 This is an OFFICIAL meteorite name. Abbreviation: NWA 15824 Observed fall: No Year found: 2022 Country: (Northwest Africa) Mass:  33.5 g | ||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 636 approved meteorites classified as CM2. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites | ||||||||||||||||||||||||||||||
| Comments: | Approved 1 Apr 2023 | ||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 112:
Northwest Africa 15824 (NWA 15824) (Northwest Africa) Purchased: 2022 Dec Classification: Carbonaceous chondrite (CM2) History: Purchased by Ziyao Wang in December 2022 from a dealer in Laayoune, Morocco. Petrography: (A. Irving, UWS, and J. Boesenberg, BrownU; L. Garvie, ASU) Well-defined small, unequilibrated chondrules (apparent diameter 180 ± 80 µm, N = 24) along with small amoeboid CAI and some small mineral fragments are set in a fine grained matrix (~50 vol.%, black in thin section). Phases identified by EMP analysis include forsterite, more ferroan olivine, enstatite, diopside, ferrotochilinite (in relatively coarse clusters around primary calcite), pyrrhotite, magnetite and trace kamacite. Powder X-ray diffraction also confirmed the presence of serpentine, regularly interstratified ferrotochilinite/cronstedtite, minor ferrotochilinite, calcite, pyrrhotite and pentlandite. Geochemistry: Forsterite (Fa1.5±1.5, range Fa0.8-6.2, N = 12), ferroan olivine (Fa35.6±7.1, range Fa18.9-41.3, N = 8), enstatite (Fs0.9±0.2Wo2.2±1.8, range Fs0.7-1.1Wo1.0-3.5, N = 2), diopside (Fs1.4±0.3Wo39.7±4.1, range Fs0.9-1.8Wo32.9-44.3, N = 7), Classification: Carbonaceous chondrite (CM2). Specimens: 7.4 g including one polished thin section at UWB; remainder with WangZ. | ||||||||||||||||||||||||||||||
| Data from: MB112 Table 0 Line 0: |
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| Institutions and collections |
ASU: Center for Meteorite Studies, Arizona State University, Tempe, Arizona 85287-1404, United States; Website (institutional address; updated 14 Jan 2012) 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) WangZ: Ziyao Wang, Hebei GEO University North Campus, Huai An dong road 127, Shijiazhuang, Hebei Province , China (private address; updated 25 Jun 2021) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 112, in preparation (2023)
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| Photos: |
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| Geography: |
Statistics: This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names) | ||||||||||||||||||||||||||||||
| Also see: |
This lists the most popular meteorites among people who looked up this meteorite.
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| Revision history: |
This lists important revisions made to data for this record.
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