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Northwest Africa 14059 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 14059 This is an OFFICIAL meteorite name. Abbreviation: NWA 14059 Observed fall: No Year found: 2019 Country: (Northwest Africa) Mass: 18.5 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 595 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 17 Jul 2021 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 110:
Northwest Africa 14059 (NWA 14059) (Northwest Africa) Purchased: 2019 Classification: HED achondrite (Eucrite) History: The meteorite was purchased from a meteorite dealer at the mineral show in Munich, Germany. Physical characteristics: Grayish fragment partly covered with fusion crust. Petrography: Unbrecciated gabbroic eucrite composed of exsolved pyroxene and often lath-shaped calcic plagioclase up to 1 mm in size. Some pyroxenes show compositional zoning attesting to a low degree of thermal metamorphism. Minor phases include silica, chromite, ilmenite, fayalite, FeS, and secondary barite. No metallic iron has been detected. Geochemistry: zoned pyroxene: Fs47.0±9.0Wo8.3±1.7 (Fs36.0-59.3Wo5.4-10.6, FeO/MnO=26-30, n=11); low-Ca pyroxene host to augite exsolution lamellae: Fs62.0±0.8Wo4.7±0.9 (Fs60.7-63.2Wo3.1-6.2, FeO/MnO=25-27, n=10); Ca-pyroxene exsolution lamellae: Fs30.9±0.5Wo42.4±0.5 (Fs30.0-32.3Wo41.3-43.0, FeO/MnO=27-32, n=11); calcic plagioclase: An81.9±1.6 (An79.9-84.8, n=11) | ||||||||||||||||||||||||||||
Data from: MB110 Table 0 Line 0: |
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Institutions and collections |
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011) |
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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) | ||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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