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Northwest Africa 13046 | |||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13046 This is an OFFICIAL meteorite name. Abbreviation: NWA 13046 Observed fall: No Year found: 2019 Country: (Northwest Africa) Mass: 22 g | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 21 approved meteorites classified as EL4. [show all] Search for other: EL chondrites, Enstatite chondrites, Enstatite chondrites (type 4-7), and Enstatite-rich meteorites | ||||||||||||||||||||||||||||||||
Comments: | Approved 21 Jan 2022 | ||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 111:
Northwest Africa 13046 (NWA 13046) (Northwest Africa) Purchased: 2019 Classification: Enstatite chondrite (EL4) History: In May 2019, at the mineral show in Chenzhou, Ziyao Wang discovered some small strange stones in the bottom of a box with ordinary chondrites from Northwest Africa, and donated some material to Rainer Bartoschewitz. Some of these stones are of meteoritic and others of terrestrial origin. Physical characteristics: 22 g dark brown irregular stone with yellow-beige caliche Petrography: (R. Bartoschewitz, Bart) well developed chondrules (0.1-0.9 mm, av. 0.3 mm) set in a brown stained matrix. Olivine mostly absent. Cracks are filled with Fe-oxihydrate and calcite. Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Enstatite Fs0.7Wo0.5 (Fs0.0-2.2Wo0.3-0.8); n=16); feldspar An11Or3 (n=1). Troilite Ti=0.4, Cr=0.5 (n=3); daubreelite Mn=1.5 (n=8) wt%. Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 4.86 Classification: Enstatite chondrite (ELa4). Classified as EL due to Mn > 1.4% in daubréelite and missing niningerite; subgroup a due to low Cr in troilite and abundant daubréelite. Specimens: 4.7 g on deposit in Kiel, 13 g and polished thin section with Bart. Writeup from MB 111: Northwest Africa 13046 (NWA 13046) (Northwest Africa) Purchased: 2019 Classification: Enstatite chondrite (EL4) History: In May 2019, at the mineral show in Chenzhou, Ziyao Wang discovered some small strange stones in the bottom of a box with ordinary chondrites from Northwest Africa, and donated some material to Rainer Bartoschewitz. Some of these stones are of meteoritic and others of terrestrial origin. Physical characteristics: 22 g dark brown irregular stone with yellow-beige caliche Petrography: (R. Bartoschewitz, Bart) well developed chondrules (0.1-0.9 mm, av. 0.3 mm) set in a brown stained matrix. Olivine mostly absent. Cracks are filled with Fe-oxihydrate and calcite. Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Enstatite Fs0.7Wo0.5 (Fs0.0-2.2Wo0.3-0.8); n=16); feldspar An11Or3 (n=1). Troilite Ti=0.4, Cr=0.5 (n=3); daubreelite Mn=1.5 (n=8) wt%. Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 4.86 Classification: Enstatite chondrite (ELa4). Classified as EL due to Mn > 1.4% in daubréelite and missing niningerite; subgroup a due to low Cr in troilite and abundant daubréelite. Specimens: 4.7 g on deposit in Kiel, 13 g and polished thin section with Bart. | ||||||||||||||||||||||||||||||||
Data from: MB111 Table 0 Line 0: |
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Institutions and collections |
Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013) Bart: Bartoschewitz Meteorite Laboratory, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019) |
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Catalogs: |
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References: | Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Geography: |
Statistics: This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names) | ||||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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