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Northwest Africa 13211 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13211 This is an OFFICIAL meteorite name. Abbreviation: NWA 13211 Observed fall: No Year found: 2019 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 569 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 29 Feb 2020 | ||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 109:
Northwest Africa 13211 (NWA 13211) (Northwest Africa) Purchased: 2019 Classification: HED achondrite (Eucrite) History: The meteorite was purchased from a Morrocan dealer at the mineral show in Hamburg, Germany. Physical characteristics: Twelve dark-grayish fragments, some of which partly covered with fusion crust. Petrography: The meteorite is a medium-grained monomict breccia composed of exsolved pyroxene and plagioclase grains up to 0.8 mm in size. Minor phases include silica, ilmenite, chromite, FeS, and metallic iron. Contains several shock melt veins and pockets. Geochemistry: low-Ca pyroxene: Fs58.5±0.4Wo2.5±0.5 (Fs57.6-59.1Wo1.9-3.6, FeO/MnO=27-28, n=13); Ca-pyroxene: Fs25.8±0.7Wo43.0±0.8 (Fs24.7-27.3Wo41.8-44.1, FeO/MnO=25-32, n=13); calcic plagioclase: An90.2±0.5 (An89.5-90.9, n=14) | ||||||||||||||||||||||||||||
Data from: MB109 Table 0 Line 0: |
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Institutions and collections |
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography: |
Statistics: This is 1 of 8890 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |