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Northwest Africa 14110 | |||||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 14110 This is an OFFICIAL meteorite name. Abbreviation: NWA 14110 Observed fall: No Year found: 2021 Country: Algeria Mass: 700 g | ||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 643 approved meteorites (plus 1 unapproved name) classified as CO3. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites | ||||||||||||||||||||||||||||||||||
Comments: | Approved 31 Aug 2021 | ||||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 110:
Northwest Africa 14110 (NWA 14110) Tindouf, Algeria Purchased: 2021 Classification: Carbonaceous chondrite (CO3) History: (C. Muñecas, Expometeritos) Two pieces weighing a total of 700 g that fit together were found near Tindouf. The meteorites were eventually purchased by Carlos Muñecas from a dealer in Tindouf. Physical characteristics: Samples have a brown, weathered exterior and irregular shape. Petrography: Description and classification: (A. Love, App) Sample shows chondritic texture composed of chondrules, fragments, isolated zoned olivine grains and CAIs set within a fine-grained partially recrystallized matrix containing some FeNi metal. Sample contains abundant FeO-rich olivine chondrules and lacks the abundant AOA’s that characterize many CO chondrites. Chondrules have an average apparent diameter of 204 μm (n=123). Additional minerals are: hercynitic spinels, chromite, FeNi metal, troilite and apatite. Geochemistry: (A. Love, App) Olivine Fa22.0±15.6 (Fa0.5-49.1, Fe/Mn=96.1±37.4, Cr2O3 in ferroan olivine=0.1±0.2 CV=71%, n=30); low-Ca pyroxene Fs6.4±8.0Wo1.5±1.6 (Fs0.1.4-28.1Wo0.4-4.6, n=11). Classification: Carbonaceous chondrite (CO3 estimated subtype CO3.5) Based upon chondrule size, presence of CAIs and magnetic susceptibility, sample is a CO. Poorly equilibrated mineral compositions, mean and CV of olivine Fa, dominant blue CL signatures (Sears et al., 1991) and iron-enrichment textures in olivine (Scott and Jones, 1990) suggest the sample is CO3.5. Specimens: Carlos Muñecas (Expometeoritos) holds the main masses. A polished thin section and a 27.32 g end cut are on deposit at App. | ||||||||||||||||||||||||||||||||||
Bibliography: |
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Data from: MB110 Table 0 Line 0: |
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Institutions and collections |
NIPR: Antarctic Meteorite Research Center, National Institute of Polar Research, 10-3 Midori-cho, Tachikawa, Tokyo 190-8518, Japan; Website (institutional address; updated 9 Dec 2013) App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013) |
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Catalogs: |
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References: | Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography: |
Statistics: This is 1 of 58 approved meteorites from Tindouf, Algeria (plus 1 impact crater) This is 1 of 1344 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters) | ||||||||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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