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Northwest Africa 11994 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 11994 This is an OFFICIAL meteorite name. Abbreviation: NWA 11994 Observed fall: No Year found: 2017 Country: (Northwest Africa) Mass: 2.16 kg | ||||||||||||||||||||||||||||||
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 9 Oct 2018 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 107:
Northwest Africa 11994 (NWA 11994) (Northwest Africa) Purchased: 2017 Jan Classification: Ordinary chondrite (L3) Petrography: (K. Metzler, IfP) Ordinary chondrite of low petrologic type consisting of closely packed chondrules and metal grains with very low amounts of interchondrule matrix. Cluster chondrite texture. Chondrule shapes are mostly ellipsoidal with parallel alignment. Geochemistry: Mineral compositions and geochemistry: The mean olivine composition is Fa22.1±3.1 (Fa13.0-26.5; n=32); the mean low-Ca pyroxene composition is Fs11.6±5.2Wo1.0±1.1 (Fs2.0-21.0Wo0.0-5.0; n=28) Classification: L chondrite based on olivine composition with a strong peak at ~Fa24. PMD of Fa values = 14, i.e. petrologic subtype estimated to be 3.8. | ||||||||||||||||||||||||||||||
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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