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Northwest Africa 11927 | |||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 11927 This is an OFFICIAL meteorite name. Abbreviation: NWA 11927 Observed fall: No Year found: 2018 Country: (Northwest Africa) Mass: 592 g | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 74 approved meteorites classified as R3. [show all] Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3) | ||||||||||||||||||||||||||||||||
Comments: | Approved 15 Sep 2018 | ||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 107:
Northwest Africa 11927 (NWA 11927) (Northwest Africa) Purchased: 2018 Classification: Rumuruti chondrite (R3) History: The meteorite was purchased from a local meteorite dealer in Erfoud, Morocco. Physical characteristics: Light brownish individual lacking any fusion crust. Petrography: The meteorite displays a light brownish to orange interior and is composed of up to 5 mm sized angular type 3 clasts and matrix. Olivine and low-Ca pyroxene are compositionally unequilibrated in clasts and matrix; Fe-rich olivine is the most dominant mineral phase in the matrix. Chondrules have an average diameter of about 400 μm. More minor phases include low-Ca pyroxene, Ca-pyroxene, sodic plagioclase, sulfides, and Ti-bearing chromite; no metal has been detected. Geochemistry: Olivine: Fa26.3±13.8 (Fa1.6-44.9, n=26); low-Ca pyroxene: Fs18.7±8.8Wo1.5±0.6 (Fs8.1-30.5Wo0.4-2.8, n=17); Ca-pyroxene: Fs10.3±3.0Wo42.1±5.4 (Fs5.2-16.1Wo31.7-47.3, n=12) | ||||||||||||||||||||||||||||||||
Data from: MB107 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. 107, MAPS 55, 460-462
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Geography: |
Statistics: This is 1 of 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names) | ||||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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