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Northwest Africa 12341 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 12341 This is an OFFICIAL meteorite name. Abbreviation: NWA 12341 Observed fall: No Year found: 2018 Country: (Northwest Africa) Mass: 719 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 836 approved meteorites (plus 1 unapproved name) classified as L3. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||
Comments: | Approved 14 Dec 2018 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 107:
Northwest Africa 12341 (NWA 12341) (Northwest Africa) Purchased: 2018 Aug Classification: Ordinary chondrite (L3) Petrography: (K. Metzler, IfP) Unshocked ordinary chondrite of low petrologic type, consisting of chondrules (types I and II) of all major textural types (PO, POP, PP, BO, C) with small amounts of interchondrule matrix. The apparent mean chondrule size is 470 µm (n=49). Nearly all metal has been oxidized by terrestrial weathering. Geochemistry: Mineral compositions and geochemistry: The mean olivine composition is Fa18.4±12.3 (Fa2.3-39.9; n=21); the mean low-Ca pyroxene composition is Fs7.3±6.4Wo0.7±0.5 (Fs1.3-23.8Wo0.2-2.4); n=22. Classification: L chondrite based on mean apparent chondrule size. Petrologic type based on the chemical variation of olivine and pyroxene. The PMD of Fa values is 67%, indicating that the petrologic subtype is <3.5. | ||||||||||||||||||||||||||||||
Data from: MB107 Table 0 Line 0: |
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Institutions and collections |
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012) |
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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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