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Northwest Africa 10554 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 10554 This is an OFFICIAL meteorite name. Abbreviation: NWA 10554 Observed fall: No Year found: 2010 Country: (Northwest Africa) Mass: 286 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 598 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 16 Mar 2016 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 105:
Northwest Africa 10554 (NWA 10554) (Northwest Africa) Find: 2010 Classification: HED achondrite (Eucrite) History: purchased in 2010 by M. Morgan in Morocco Physical characteristics: Physical: One piece covered by thin black fusion crust with signs of weathering Petrography: (Y. Liu, JPL) Light-gray stone consists of subophitic assembly of fine-grained plagioclase and pyroxene. Large anhedral pyroxene and plagioclase grains are also present, forming locally porphyritic texture. Accessory phases include silica phase, troilite, ilmenite and chromite. Geochemistry: Low-Ca pyroxene (Fs60-59Wo2-4, FeO/MnO=30-34) contains pigeonite lamellae (Fs25-29Wo45-40, FeO/MnO=31-34) or vise versa; Plagioclase (An90.7±1.2, n=20). Classification: Eucrite Specimens: 20.9 g at UCLA. The remainder is held by by MtMorgan. | ||||||||||||||||||||||||||||
Data from: MB105 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) MtMorgan: Matt Morgan, Mile High Meteorites, P.O. Box 151293, Lakewood, CO 80215-9293, United States; Website (private address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Geography: |
Statistics: This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names) | ||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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