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Northwest Africa 2060 | |||||||||||||
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Basic information | Name: Northwest Africa 2060 This is an OFFICIAL meteorite name. Abbreviation: NWA 2060 Observed fall: No Year found: 2003 Country: (Northwest Africa) Mass: ![]() | ||||||||||||
Classification history: |
This is 1 of 449 approved meteorites classified as Howardite. [show all] Search for other: Achondrites, HED achondrites, and Howardites | ||||||||||||
Writeup![]() |
Writeup from MB 88:
Northwest Africa 2060 Morocco Found 2003 Achondrite (howardite) A 985 g, very fresh stone with shiny fusion crust, was purchased in Rissani, July 2003. Classification and mineralogy (T. Bunch and J. Wittke, NAU): a howardite of unusual characteristics. Fine-grained and powdery, average clast and mineral grain size is < 2 mm with few clasts > 3 mm. Clast modes: diogenites, 74 vol. %; eucrites 20 vol. % (12 % cumulate, 8 % basaltic); anorthositic-like clasts, 3 %; shock melt clasts. 2 %, and opaques, 1%. Diogenite orthopyroxene, Fs35.6-38.8Wo2.3-4.2; plagioclase, An 87; chromite, Cr/(Cr+Al) = 0.81; metal, Ni = 0.67 wt %. Melt inclusions in opx contain Ca-rich pyroxene, Fs33.3Wo37.5; phosphate, silica phase, and K-rich glass. Plagioclase-pyroxene cumulates, Fs38.2Wo21; plagioclase, An86.Other eucrite textures include recrystallized, granular, ophitic, subophitic, and variolitic (Fs31.6Wo7 and Fs61.8Wo33). Plagioclase-rich clasts have 95 vol.% plagioclase (An96.1). Mildly shocked; no apparent oxidation or Fe staining. Specimens: 26 g, NAU: main mass. Boswell. | ||||||||||||
Data from: MB88 Table 4 Line 148: |
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Institutions and collections |
NAU: Geology, Bldg 12
Knoles Dr
Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)
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Geography: |
Statistics: This is 1 of 9368 approved meteorites from (Northwest Africa) (plus 1875 unapproved names) |