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| Northwest Africa 14672 | |||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 14672 This is an OFFICIAL meteorite name. Abbreviation: NWA 14672 Observed fall: No Year found: 2015 Country: (Northwest Africa) Mass:  134.5 g | ||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 329 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite). [show all] Search for other: Martian meteorites | ||||||||||||||||||||||||||||
| Comments: | Approved 19 Feb 2022 | ||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 111:
Northwest Africa 14672 (NWA 14672) (Northwest Africa) Purchased: 2015 Classification: Martian meteorite (Shergottite) Petrography: This is an olivine-phyric shergottite with anhedral olivine phenocrysts, pigeonite, augite, and plagioclase.Minor minerals include a silica phase, merrillite, Ti magnetite and Fe sulfide.The meteorite contains fine vesicles (100-200 micrometers) and abundant mesostasis with two distinct textures, one with plagioclase bars and one with olivine dendrites. Shock evidence include the presence of maskelynite and the diverse textures of the fine-grained portions . Geochemistry: Mineral compositions and geochemistry: R. Hewins. Olivine has a composition of Fo53-15 (FeO/MnO 49.3). There is a continuum of pigeonite/subcacic augite/augite compositions: across a spread of Wo9-43 on the quadrilateral, En decreases from 53 to 15 while Fs increases from 22 to 61. Maskelynite composition is An59-68. Classification: Martian (shegottite, olivine-phyric). Specimens: type specimen 20 g at MNHNP. Main mass held anonymously. | ||||||||||||||||||||||||||||
| Data from: MB111 Table 0 Line 0: |
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| Institutions and collections |
MNHNP: Museum National d'Histoire Naturelle, IMPMC-CP52, 57 rue Cuvier, 75005 Paris, France, France; Website (institutional address) Labenne: 23, rue de Esperance, 75013 Paris, France; Website (private address; updated 29 Aug 2012) |
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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: |
Statistics: This is 1 of 9914 approved meteorites from (Northwest Africa) (plus 1841 unapproved names) | ||||||||||||||||||||||||||||