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Northwest Africa 13656 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13656 This is an OFFICIAL meteorite name. Abbreviation: NWA 13656 Observed fall: No Year found: 2020 Country: (Northwest Africa) Mass: 811 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 628 approved meteorites (plus 1 unapproved name) classified as CV3. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites | ||||||||||||||||||||||||||||||
Comments: | Approved 16 Jan 2021 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 110:
Northwest Africa 13656 (NWA 13656) (Northwest Africa) Purchased: 2020 Sep Classification: Carbonaceous chondrite (CV3) Petrography: (K. Metzler, IfP) Chondrules, CAIs and AOAs are embedded in a fine-grained dark matrix (about 40 vol% matrix). Most chondrules have apparent diameters between 0.3 and 1.5 mm, some up to 3 mm. Type II chondrules are rare. Opaque minerals are magnetite, pentlandite and traces of Ni-rich metal (Fe30Ni70). Geochemistry: Mineral compositions and geochemistry: Random measurements of olivine grains revealed Fa8.4±12.6 (Fa0.3-36.3); n=16. Random measurements of low-Ca pyroxene grains revealed Fs1.3±0.6Wo2.2±1.5 (Fs0.6-2.5Wo0.9-4.3); n=12. Classification: CV chondrite based on CAI and AOA occurrence, size of chondrules and CAIs, chondrule-matrix ratio, and mineral chemistry. Petrologic type 3 based on the chemical variation of olivine and pyroxene. | ||||||||||||||||||||||||||||||
Data from: MB110 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 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 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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