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Northwest Africa 11585 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 11585 This is an OFFICIAL meteorite name. Abbreviation: NWA 11585 Observed fall: No Year found: 2015 Country: Morocco Mass: 70 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 660 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||||||||||||||||||||
Comments: | Approved 3 Feb 2018 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 107:
Northwest Africa 11585 (NWA 11585) North West Africa, Morocco Purchased: October 2015 Classification: Ureilite Petrography: (H. Downes, Birkbeck) Equigranular, anhedral, slightly poikilitic crystals of olivine and low-Ca pyroxene, with minor interstitial metal and very rare carbon. There is no evidence of zoning in minerals. This meteorite does not exhibit a typical ureilite texture, but is more similar to the Hughes Type. Geochemistry: Mineral compositions and geochemistry: (N. Rai, N.V. Almeida, NHM). All analyses by EPMA. Olivine cores Fa10.8±0.6, 0.45 to 0.52 wt% MnO, 0.50 to 0.55 wt% Cr2O3, 0.14 to 0.68 wt% CaO, < 0.01 wt% Ni, (N=32). Pyroxene Fs10.1±0.8Wo8.3±0.6, 0.38 to 0.52 wt% MnO, 0.89 to 0.92 wt% Cr2O3, (N=11). Classification: Ureilite Specimens: 14.2 g on deposit at the NHM. M. Bilet holds the main mass. | ||||||||||||||||||||||||||||||
Data from: MB107 Table 0 Line 0: |
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Institutions and collections |
NHM: Department of Mineralogy, The Natural History Museum, Cromwell Road, London SW7 5BD, United Kingdom; Website (institutional address; updated 9 Dec 2011) |
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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 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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