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Northwest Africa 13002 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13002 This is an OFFICIAL meteorite name. Abbreviation: NWA 13002 Observed fall: No Year found: 2019 Country: Algeria Mass: 697 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 237 approved meteorites classified as Eucrite-br. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 9 Feb 2020 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 109:
Northwest Africa 13002 (NWA 13002) Algeria Purchased: 2019 Classification: HED achondrite (Eucrite, brecciated) History: Purchased in November 2019 by Matthew Stream from Mostafa Hnini. Physical characteristics: Single stone with weathered fusion crust. Petrography: (D. Sheikh, FSU) Sample is a breccia composed of basaltic clasts and isolated mineral fragments present in a fine-grained matrix. Minerals present include orthopyroxene, pigeonite, augite, calcic plagioclase, troilite, SiO2 rich glass, chromite, and ilmenite. Geochemistry: Low-Ca Pyroxene (Fs53.7±2.8Wo5.4±0.4, range Fs49.5-59.5Wo4.7-5.9, FeO/MnO= 30±3, n=15); pigeonite (Fs51.4±3.2Wo8.7±2.9, range Fs44.1-58.0Wo6.0-17.7, FeO/MnO= 31±3, n=50); high-Ca pyroxene (Fs29.7±3.7Wo36.8±4.3, range Fs25.3-37.1Wo30.9-43.4, FeO/MnO= 30±4, n=15); calcic plagioclase (An88.8±3.0, range An80.4-92.9, n=20). Classification: HED achondrite (Eucrite, brecciated) Specimens: 26 grams at UCLA; main mass with Matthew Stream. | ||||||||||||||||||||||||||||
Data from: MB109 Table 0 Line 0: |
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Institutions and collections |
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011) FSU: Department of Geological Sciences, Florida State University, Tallahassee FL 32306-4100, United States (institutional address; updated 16 Dec 2010) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography: |
Statistics: This is 1 of 1356 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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