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| Northwest Africa 12964 | |||||||||||||||||||||
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| Basic information | Name: Northwest Africa 12964 This is an OFFICIAL meteorite name. Abbreviation: NWA 12964 Observed fall: No Year found: 2018 Country: Morocco Mass:  278 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 660 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||||||||||
| Comments: | Approved 29 Nov 2019 | ||||||||||||||||||||
| Writeup |
Writeup from MB 108:
Northwest Africa 12964 (NWA 12964) Morocco Purchased: 2018 Classification: Ureilite Petrography: (J. Gattaceca, CEREGE) Blocky silicate assemblage. Grain size about 1 mm. Olivine dominates strongly over pyroxene. Olivine shows reduced rims. Carbon material is present at grain boundaries. Geochemistry: Olivine cores Fa22.8±0.2 (n=3), rim Fa18.2 (n=1), CaO 0.27 wt%, Cr2O3 0.54 wt%. Pigeonite Fs18.9Wo10.2, FeO/MnO=32.9 (n=2). Classification: Ureilite Specimens: Type specimen at CEREGE. Main mass with George Peneff. | ||||||||||||||||||||
| 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 10 Jun 2023) |
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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:
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Statistics: This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||
| Also see: |
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| Revision history: |
This lists important revisions made to data for this record.
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