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Northwest Africa 12190 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 12190 This is an OFFICIAL meteorite name. Abbreviation: NWA 12190 Observed fall: No Year found: 2018 Country: Western Sahara Mass: 1147 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 451 approved meteorites classified as Howardite. [show all] Search for other: Achondrites, HED achondrites, and Howardites | ||||||||||||||||||||||||||||||
Comments: | Approved 9 Nov 2018 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 107:
Northwest Africa 12190 (NWA 12190) Western Sahara Purchased: May 2018 Classification: HED achondrite (Howardite) History: Found in Gdeim Ashham, Western Sahara, February 2018. Purchased by Darryl Pitt in Mauritania, May 2018. Physical characteristics: Single stone; sandblasted exterior; saw cut reveals a brecciated interior with numerous feldspar, pyroxene, and lithic clasts; significant domains of recrystallized shock melt are present. Petrography: (C. Agee, UNM) This meteorite is a polymict breccia consisting of approximately 50% diogenite material and 50% cumulate eucrite material. Geochemistry: (C. Agee, UNM) Diogenite mineralogy: olivine Fa45.7, Fe/Mn=49, n=1, low-Ca pyroxene 25.4±3.3Wo2.6±1.0, Fe/Mn=30±1, n=5; eucrite mineralogy: low-Ca pyroxene 47.8±4.7Wo8.7±9.0, Fe/Mn=31±1, n=5; plagioclase An92.9±3.4. Classification: Howardite Specimens: 25.3 g including a probe mount on deposit at UNM, DPitt holds the main mass. | ||||||||||||||||||||||||||||||
Data from: MB107 Table 0 Line 0: |
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Institutions and collections |
UNM: Institute of Meteoritics
MSC03 2050
University of New Mexico
Albuquerque NM 87131-1126
USA, United States; Website (institutional address; updated 12 Feb 2015) DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
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Geography: |
Statistics: This is 1 of 280 approved meteorites from Western Sahara (plus 20 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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