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Northwest Africa 12469 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 12469 This is an OFFICIAL meteorite name. Abbreviation: NWA 12469 Observed fall: No Year found: 2017 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 602 approved meteorites (plus 1 unapproved name) classified as CV3. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites | ||||||||||||||||||||||||||||||
Comments: | Approved 22 Feb 2019 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 108:
Northwest Africa 12469 (NWA 12469) (Northwest Africa) Purchased: 2017 Mar Classification: Carbonaceous chondrite (CV3) History: Purchased in Rissani by Pierre-Marie Pelé Physical characteristics: Dark stone. Cut surface reveals chondrules and CAIs set in a dark matrix. Petrography: Chondrules with average size 870 μm (n=19) and CAIs set in fine-grained matrix (48 vol% from point counting, n=168). Opaque minerals are sulfide and magnetite. Based on the structural order of the polyaromatic matter assessed by Raman spectroscopy, this meteorite is attributed a petrographic type >3.6. The Raman spectroscopy parameters of interest are FWHM-D (cm-1)=92.91±7.02, ID/IG= 1.383 ±0.005 (see Bonal et al. 2016). Geochemistry: Olivine Fa2.7±2.5, PMD=66%, range Fa0.6-8.1 (n=6), Cr2O3 in ferroan olivine is 0.22±0.12wt% (n=5). Low-ca pyroxene Fs4.9Wo0.9 (n=1) Classification: Carbonaceous chondrite (CV3, oxidized subgroup) Specimens: 21.18 g and a polished section at CEREGE. Main mass with Pierre-Marie Pelé | ||||||||||||||||||||||||||||||
Bibliography: |
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Data from: MB108 Table 0 Line 0: |
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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) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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Geography: |
Statistics: This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |